Lettercode Title Classes Records
A Records of the Alienation Office 9 156
AB Records of the United Kingdom Atomic Energy Authority and its predecessors 92 63100
ACT Records of the Government Actuary's Department 2 2627
ADM Records of the Admiralty, Naval Forces, Royal Marines, Coastguard, and related bodies 339 471989
AE Records of the Royal Commission on Historical Monuments (England) 4 83
AF Records of the Parliamentary Boundary Commissions for England and Wales 2 2508
AH Records of the Location of Offices Bureau 5 173
AIR Records created or inherited by the Air Ministry, the Royal Air Force, and related bodies 79 160315
AJ Records of the Consumer Council 10 434
AK Records of County Courts 64
AM Records of the Parliamentary Counsel's Office 0
AN Records created or inherited by the British Transport Commission, the British Railways Board, and related bodies 171 21962
AO Records of the Auditors of the Imprest, Commissioners of Audit, Exchequer and Audit Department, National Audit Office and related bodies 33 19525
AP Records of the Irish Sailors and Soldiers Land Trust 8 1026
AR Records of the Wallace Collection 1 718
ASSI Records of Justices of Assize, Gaol Delivery, Oyer and Terminer, and Nisi Prius 81 41992
AST Records of the Unemployment Assistance Boards, the Supplementary Benefits Commission, and of related bodies 45 4285
AT Records created or inherited by the Department of the Environment, and of related bodies 72 3507
AVIA Records created or inherited by the Ministry of Aviation and successors, the Air Registration Board, and related bodies 123 94695
AW Records of the British European Airways and British Overseas Airways Corporation 0
AX Records of the Local Government Boundary Commission for England 11 206
AY Records of various research institutes 39 12251
B Records of the Office of the Commissioners of Bankrupts, the successor bankruptcy courts, and the Court for the Relief of Insolvent Debtors 12 8569
BA Records of the Civil Service Department 26 897
BC Records of the Law Commission 3 1035
BD Records created or inherited by the Welsh Office 103 13811
BE Records of the Iron and Steel Corporation of Great Britain, the Iron and Steel Board, and related bodies 2 1783
BF Records of the Pensions Appeal Tribunals 4 1016
BH Hudson's Bay Company Archives 1 24050
BJ Records of the Meteorological Office 10 2014
BK Records of the National Dock Labour Corporation and National Dock Labour Board 37 2973
BL Records of the Council on Tribunals 8 4603
BM Records of the Disabled Persons Employment Corporation Ltd and of Remploy Ltd 16 593
BN Records created or inherited by the Department of Health and Social Security and related bodies 99 7221
BP Records of the Royal Fine Art Commission 3 242
BR Records of the British Transport Docks Board 2 35
BS Records of defunct temporary bodies 27 9870
BT Records of the Board of Trade and of successor and related bodies 377 399115
BV Records of the Parole Board 1 8
BW Records of the British Council 164 7077
BX Records created or inherited by the Coal Industry Social Welfare Organisation 9 385
BY Records of the National Portrait Gallery: not transferred to PRO 0
C Records created, acquired, and inherited by Chancery, and also of the Wardrobe, Royal Household, Exchequer and various commissions 244 1307665
CAB Records of the Cabinet Office 184 58007
CAOG Records created or inherited by the Crown Agents for Overseas Governments and Administrations 23 3192
CB Records of the National Playing Fields Association 4 565
CD Cinematograph films 0
CE Records of the British Museum 50
CF Records of National Health Service hospitals 2 253
CHAR Records of the Charity Commissioners and Charity Commission 17 1592
CHES Records of the courts of the Palatinate of Chester, including the county of Flint 38 4046
CJ Records created or inherited by the Northern Ireland Office 3 89
CK Records of the Commission for Racial Equality and predecessors 3 3411
CL Records of the Certification Office for Trade Unions and Employers' Associations 2 37
CM Records created or inherited by the Property Services Agency 60 2268
CN Photographic prints and negatives extracted from various record series 26 192
CO Records of the Colonial Office, Commonwealth and Foreign and Commonwealth Offices, Empire Marketing Board, and related bodies 1063 213227
COAL Records created or inherited by the National Coal Board, and of related bodies 102 57995
COPY Records of the Copyright Office, Stationers' Company 3 1578
COU Records of the National Parks Commission and the Countryside Commission 11 3288
CP Records of the Court of Common Pleas and other courts 88 71018
CRES Records of The Crown Estate and predecessors 65 25280
CRIM Records of the Central Criminal Court 13 10166
CSC Records of the Civil Service Commission 13 19435
CSPR Records of the Civil Service Pay Research Unit 5 642
CT Records of the offices of the National Insurance Commissioners and the Social Security Commissioners 34 3535
CUST Records of the Boards of Customs, Excise, and Customs and Excise 154 27437
CV Records of Value Added Tax Tribunals 7 475
CW Records of the Advisory, Conciliation and Arbitration Service 4 152
CX Records of the Price Commission 1 1675
CY Records of the Royal Commission on Environmental Pollution 4 743
D Records of the Rural Development Commission and predecessors 16 4037
DB Records created or inherited by the Council for National Academic Awards, and of related bodies 4 3314
DC Records of the London Museum 13 276
DD Records of the Local Government Boundary Commission for Wales 11 250
DEFE Records of the Ministry of Defence 59 15395
DEL Records of the High Court of Delegates 11 4925
DF Records created and acquired by the Natural History Museum, London 109 1696
DG Records of international organizations 11 583
DH Records of the British Library and the British Museum Library 69 152
DJ Records of the Post Office Users' National Council 3 112
DK Records of the National Ports Council 1 496
DL Records of the Duchy of Lancaster 45 37377
DM Records of the Occupational Pensions Board 2 139
DN Records of the Public Health Laboratory Service Board 3 60
DO Records created or inherited by the Dominions Office, and of the Commonwealth Relations and Foreign and Commonwealth Offices 227 42274
DPP Records of the Director of Public Prosecutions 9 4896
DR Records created or inherited by the Civil Aviation Authority 106 6334
DSIR Records created or inherited by the Department of Scientific and Industrial Research, and of related bodies 75 75269
DT Records of the General Nursing Council for England and Wales 48 8925
DURH Records of the Palatinate of Durham 27 4119
DV Records of the Central Midwives Board 13 2345
DW Records of the Council for the Training of Health Visitors, and of the Council for the Education and Training of Health Visitors 4 257
DX Records of the Panel of Assessors for District Nurse Training 1
DY Records of the Joint Board of Clinical Nursing Studies 2 218
E Records of the Exchequer, and its related bodies, with those of the Office of First Fruits and Tenths, and the Court of Augmentations 277 354825
EA Records of the National Council, and Council, for Educational Technology 3 141
EB Records of the Standing Commission on Museums and Galleries, and of the Museums and Galleries Commission 6 226
ECCL Records deposited by the Ecclesiastical Commission 2
ECG Records of the Export Credit Guarantee Department and Export Credits Guarantee Department 10 398
ED Records created or inherited by the Department of Education and Science, and of related bodies 279 217508
EF Records created or inherited by the Health and Safety Commission and Executive 12 4574
EG Records created or inherited by the Department of Energy 18 9734
EH Records of the Pay Board 3 169
EJ Records created or inherited by the Schools Council for Curriculum and Examinations, and of successor and related bodies 14 851
EL Records of the Council for the Encouragement of Music and the Arts, and the Arts Council of Great Britain 14
EM Records of Special Commissioners of Income Tax 4 383
EN Records of the Imperial War Museum 3
EP Records of the Advisory Council and of the Reviewing Committee on the Export of Works of Art 3 96
ER Records of Standing Civilian Courts 1 8
ES Records of the Atomic Weapons Research Establishment 13 5504
ET Records created or inherited by the Manpower Services Commission 10 551
EV Records created or inherited by the Science and Engineering Research Council 8 98
EW Records of the Department of Economic Affairs 28 6146
EXT Documents and objects extracted from various record series 11 676
EY Records of the Social Science Research Council and the Economic and Social Research Council 3 734
F Records created or inherited by the Forestry Commission, and of related bodies 42 7317
FA Records of the (OFGAS) 1 7
FB Records of the Central Bureau for Educational Visits and Exchanges 2 40
FCO Records of the Foreign and Commonwealth Office and predecessors 85 30595
FD Records created or inherited by the Medical Research Council 25 27893
FEC Records of the Forfeited Estates Commission 2 1945
FG Records of the National Economic Development Council and National Economic Development Office 5 4879
FH Records created or inherited by the National Bus Company 14 719
FJ Records of the Commission for the New Towns 3 388
FK Records of the Office of the Secretary of State for Local Government and Regional Planning 1 31
FL Records of the Adult Literacy Resource Agency and successors 3 106
FM Records of the Historic Buildings and Monuments Commission for England (English Heritage) 2 664
FN Records of the Pilotage Commission 3 295
FO Records created and inherited by the Foreign Office 1093 603466
FP Records of the Health Education Council and Health Education Authority 0
FR Records created or inherited by the Legal Aid Board 7 161
FS Records created or inherited by the Registry of Friendly Societies 37 22804
FT Records created and inherited by the Nature Conservancy, the Nature Conservancy Council and English Nature 40 3154
FV Records created or inherited by the Department of Trade and Industry, 1970-1974, and successors 84 5169
FW Records of the National Curriculum Council 5 87
FY Records of the Potato Marketing Boards 16 621
GFM Copies of captured records of the German, Italian and Japanese Governments. 36 52731
GIRO Records of the National Girobank and Predecessors 0
HA Records of the Natural Environment Research Council 1
HB Records of the Office of Electricity Regulation 1
HCA Records of the High Court of Admiralty and colonial Vice-Admiralty courts 65 46968
HD Records created or inherited by the Secret Intelligence Service 5 153
HE Records of the English National Board for Nursing, Midwifery and Health Visiting 7 54
HF Records of the Ministry of Technology 19 111
HK Records of the Museums Association 3 67
HLG Records created or inherited by the Ministry of Housing and Local Government, and of successor and related bodies 161 109465
HMC Records of the Royal Commission on Historical Manuscripts 10 1277
HN Records of the Central Computer and Telecommunications Agency and predecessors 3 38
HO Records created or inherited by the Home Office, Ministry of Home Security, and related bodies 407 244387
HP Records of the National Radiological Protection Board 4
HR Records of the Marshall Aid Commemoration Commission 3 36
HS Records of Special Operations Executive 7 3530
HT Records of the Commission for Local Administration in England (Local Government Ombudsman) 4 46
HV Records of the Crown Estate Paving Commission 3 39
HW Records created and inherited by Government Communications Headquarters (GCHQ) 43 26946
HX Records of the Civil Service Occupational Health Service and the Civil Service Occupational Health and Safety Agency 16 183
HY Records of the Intervention Board for Agricultural Produce 7 19
IND Indexes to various series 1 38156
INF Records created or inherited by the Central Office of Information 22 10843
IR Records of the Boards of Stamps, Taxes, Excise, Stamps and Taxes, and Inland Revenue 274 270554
J Records of the Supreme Court of Judicature and related courts 334 230357
JA Records created or inherited by the Department of Health (1988-) 7 696
JB Records created or inherited by the Department of Social Security (1988- ) 3
JC Records of the Office of Water Services (Ofwat) 9 142
JD Records of the Monopolies and Mergers Commission and predecessors 3 12
JE Records of the Office of the National Lottery 2 36
JF Records created by the Department of Prices and Consumer Protection and successors 2 45
JH Records created or inherited by the Ministry of Land and Natural Resources and successor bodies 9 134
JK Records of the Office of Her Majesty's Chief Inspector of Schools in Wales 0
JL Records of the Curriculum Council for Wales and the Curriculum and Assessment Authority for Wales 4 61
JM Records of the Further Education and Higher Education Funding Councils for Wales 3 19
JN Records of the Committee on Standards in Public Life 3 257
JP Records of the Revenue Adjudicator's Office 1 6
JR Records of the Office of the Rail Regulator 2 37
JS Records of the Further Education Funding Council for England 5 43
JT Records of the Local Government Commission for England 1 1
JUST Records of itinerant justices and other court records 4 3384
JV Records of the Milk Marketing Board 12 2392
JW Records of the Metrication Board 3 84
JX Records created by the Office of the Data Protection Registrar 4
JY Records created or inherited by the Civil Service College 3 92
KA Records of the Office of Passenger Rail Franchising 2 7
KB Records of the Court of King's Bench and other courts 101 53085
KC Records of the School Examinations and Assessment Council 2 29
KD Records created by the Coal Authority 6 6
KE Records of the Royal Air Force Museum 2 16
KF Records of the Inquiry into Exports of Defence Equipment and Dual-Use Goods to Iraq and Related Prosecutions (Scott Inquiry) 1 78
KH Records of the Special Educational Needs Tribunal 1 1
KJ Records created and inherited by the Government Property Lawyers 1
KL Records of the Funding Agency for Schools 1 6
KM Records created and inherited by the Meat Hygiene Service 1 3
KN Records of the United Kingdom Central Council for Nursing, Midwifery and Health Visiting 1 18
KP Records of the Advisory Committee on Legal Education and Conduct 2 506
KR Records of the Joint Nature Conservation Committee 7 36
KS Records created and inherited by the Radiocommunications Agency 2 16
KT Records of the Office for Standards in Education 3 15
KV Records of the Security Service 4 530
KW Records of the Royal Parks Agency 1 3
KX Records of the Historic Royal Palaces Agency 1 16
KY Records of the National Council for Vocational Qualifications 2 58
LAB Records of departments responsible for labour and employment matters and related bodies 120 83413
LAR Records created or inherited by the Land Registry 4 502
LB Records of the Combined Tax Tribunal 1
LC Records of the Lord Chamberlain and other officers of the Royal Household 13 2818
LCO Records of the Lord Chancellor's Office and of various legal commissions and committees 59 22001
LD Records created or inherited by the Office of Fair Trading 1
LE Records of the Court Service 1
LF Records created by the Office of Telecommunications (OFTEL) 1
LH Records created or inherited by the Women's National Commission 0
LJ Records created or inherited by the Council for the Central Laboratory of the Research Councils 3
LK Records of the Police Complaints Authority and Police Complaints Board 3 26
LM Records of the Department of Transport 1
LN Records of the Building Societies Commission 1
LO Records created or inherited by the Law Officers' Department 4 2686
LP Records of the Department of the Environment, Transport and the Regions 2
LR Records created or inherited by the Office of the Auditors of Land Revenue 17 11931
LRRO Records of the Office of Land Revenue Records and Enrolments and its predecessors and associated departments 59 9662
LS Records of the Lord Steward, the Board of Green Cloth and other officers of the Royal Household 13 1381
LT Records created or inherited by the Lands Tribunal 13 5208
LV Records of the Friendly Societies Commission 1
LX Records created or inherited by the Contributions Agency 3
LY Records of the Child Support Agency 1
MAF Records created or inherited by the Agriculture, Fisheries and Food Departments, and of related bodies 421 167412
MEPO Records of the Metropolitan Police Office 40 18496
MF Maps and plans extracted to flat storage from records of various departments 1 36
MFC Maps and plans extracted to flat storage from records of various departments formerly held at the Public Record Office, Chancery Lane 1 208
MFQ Maps and plans extracted to flat storage from records of various departments held at the Public Record Office, Kew 1 1411
MH Records created or inherited by the Ministry of Health and successors, Local Government Boards and related bodies 169 68221
MINT Records of the Royal Mint 29 6555
MONW Records of the Royal Commission on Ancient and Historical Monuments in Wales and Monmouthshire 1 29
MPA Maps and plans extracted to flat storage from records of the Chancery 1 115
MPAA Maps and plans extracted to extra large flat storage from records of the Chancery 1 8
MPB Maps and plans extracted to flat storage from records of the Exchequer 1 65
MPBB Maps and plans extracted to extra large flat storage from records of the Exchequer 1 3
MPC Maps and plans extracted to flat storage from records of the Duchy of Lancaster 1 282
MPCC Maps and plans extracted to extra large flat storage from records of the Duchy of Lancaster 1 9
MPD Maps and plans extracted to flat storage from records of the Treasury and Treasury Solicitor 1 214
MPDD Maps and plans extracted to extra large flat storage from records of the Treasury 1 6
MPE Maps and plans extracted to flat storage from records of the Office of Land Revenue Records and Enrolments 1 1617
MPEE Maps and plans extracted to extra large flat storage from records of the Office of Land Revenue Records and Enrolments 1 255
MPF Maps and plans extracted to flat storage from records of the State Paper Office 1 369
MPFF Maps and plans extracted to extra large flat storage from records of the State Paper Office 1 1
MPG Maps and plans extracted to flat storage from records of the Colonial Office 1 1251
MPGG Maps and plans extracted to extra large flat storage from records of the Colonial Office 1 130
MPH Maps and plans extracted to flat storage from records of the War Office 1 1216
MPHH Maps and plans extracted to extra large flat storage from records of the War Office 1 703
MPI Maps and plans extracted to flat storage from records of departments not assigned an individual map extract prefix 1 792
MPII Maps and plans extracted to extra large flat storage from records of departments not assigned an individual map prefix 1 96
MPK Maps and plans extracted to flat storage from records of the Foreign Office 1 532
MPKK Maps and plans extracted to extra large flat storage from records of the Foreign Office 1 67
MPL Maps and plans extracted to flat storage from records of the Court of Common Pleas 1 87
MPLL Maps and plans extracted to extra large flat storage from records of the Court of Common Pleas 1 11
MPM Flat maps and drawings of special interest 0
MPN Maps and plans extracted to flat storage from records of the Court of King's Bench 1 27
MPNN Maps and plans extracted to flat storage from records of the Court of King's Bench 1 3
MPO Maps and plans extracted to flat storage from records of the Forestry Commission 1 305
MPP Flat maps from Cabinet Office classes 0
MPQ Maps and plans extracted to flat storage from records of the Privy Council 1 27
MPQQ Maps and plans extracted to extra large flat storage from records of the Privy Council 1 30
MPR Flat maps from RAIL classes 0
MPS Maps, plans and surveys from the British Transport Historical Record Office 8
MPT Maps and plans extracted to flat storage from records of the British Transport Commission 1 12
MPZ Maps and plans extracted from records of various departments 1 48
MR Maps and plans extracted to rolled storage from records of various departments 4 2093
MRC Maps and plans extracted to rolled storage from records of various departments formerly held at the Public Record Office, Chancery Lane 1 9
MRQ Maps and plans extracted to rolled storage from records of various departments held at the Public Record Office, Kew 1 52
MT Records created or inherited by the Transport Departments and of related bodies, and of the London Passenger Transport Board 187 120947
MUN Records of the Ministry of Munitions and successors, including papers of David Lloyd George 9 13589
NATS Records created or inherited by the Ministry of National Service 1 1333
NB Records created or inherited by the Benefits Agency 2
NC Records of the National Lottery Charities Board 1 1
NDO Records of the National Debt Office, and related bodies 21 1413
NE Records created or inherited by the Central Council for Education and Training in Social Work 0
NF Records of the Registry of Trade Unions and Employers Associations 4 140
NG Records of the National Gallery 15
NH Records of the Countryside Council for Wales 1
NIA Records of the National Insurance Audit Department 3 33
NICO Records of the National Incomes Commission 2 288
NJ Records of the Office of Manpower Economics 0
NK Records created or inherited by the (second) Department of Trade and Industry (1983- ) 1
NL Records of the Independent Commission on the Voting System 1 43
NMM Records of the National Maritime Museum 25
NP Records of the Office of the President of Social Security Appeal Tribunals, Medical Appeal Tribunals and Vaccine Damage Tribunals and Independent Tribunal Service 0
NR Records of the Central Rail Users Consultative Committee and predecessors 2
NSC Records created and inherited by the National Savings Committee, the Post Office Savings Department and the Department for National Savings 60 7834
NV Records of the Department for Education and Employment 1
NW Records of the Interception of Communications Act Commissioner 0
NX Records of the Security Service Act Commissioner 0
NY Records of the Intelligence Services Act Commissioner 0
OBS Obsolete lists and indexes 1 2036
OD Records created or inherited by the Department of Technical Co-operation, and of successive Overseas Development bodies 64 10279
OS Records of the Ordnance Survey of Great Britain 52 233760
PALA Records of the Palace Court 9 669
PB Records of the Teacher Training Agency 1 11
PC Records of the Privy Council and other records collected by the Privy Council Office 22 21458
PCAP Records of the Judicial Committee of the Privy Council 4 656
PCOM Records created or inherited by the Prison Commission and Home Office Prison Department 17 5331
PD New Millenium Experience Company 1
PEV Records of the Court of the Honour of Peveril 1 62
PH Records created or inherited by the Central Council for Education and Training in Social Work 0
PIN Records created or inherited by the Ministry of Pensions and National Insurance, and of related and successor bodies 94 60866
PJ Records created or inherited by the Department of Trade, 1974-1983, and successors 1
PL Records of the Palatinate of Lancaster 51 22931
PMG Records of the Paymaster General's Office and predecessors 75 3336
PN Records of the Inquiry into BSE 0
POST Records created and used by the British Post Office 94 36124
POWE Records created or inherited by the Ministry of Power, and of related bodies 74 18687
PP Records of the Keeper of the Privy Purse 3 3568
PREM Records of the Prime Minister's Office 15 15199
PRIS Records of the King's Bench, Fleet, and Marshalsea prisons 11 817
PRO Domestic Records of the Public Record Office, Gifts, Deposits, Notes and Transcripts 194 71020
PROB Records of the Prerogative Court of Canterbury
PSO Records of the Keeper of the Privy Seal 7 606
PT Records of the Public Trustee Office 2 339
PWLB Records of the Loan Commissioners and the Public Works Loan Board 11 1571
QAB Records of the Office of Queen Anne's Bounty, including some inherited from the Office of First Fruits and Tenths 1 397
RAIL Records of the pre-nationalisation railway companies, pre-nationalisation canal and related companies, the London Passenger Transport Board, and successors 1147 101384
RECO Records created or inherited by the Ministry of Reconstruction 1 874
REQ Records of the Court of Requests 4 1206
RG Records of the General Register Office, Government Social Survey Department, and Office of Population Censuses and Surveys 75 143880
RGO Records of the Royal Greenwich Observatory 211 471
SC Records of various departments, arranged artificially according to type, and formerly entitled Special Collections 16 52237
SO Records of the Signet Office 8 614
SP Records assembled by the State Paper Office, including papers of the Secretaries of State up to 1782 127 164628
STAC Records of the Court of Star Chamber and of other courts 13 56770
STAT Records of the Stationery Office 26 7943
SUPP Records created or inherited by the Ministry of Supply and successors, the Ordnance Board, and related bodies 29 8941
T Records created and inherited by HM Treasury 351 186075
TCB Records created and used by the Post Office telegraph and telephone service 5
TCC Records created and used by the Post Office Corporation (Telecommunications Division) 4
TCD Records created and used by British Telecommunications (public corporation) 1
TCK Private collections of telecommunications related records held by BT Archives 1
TG Records of the Tate Gallery 0
TITH Records of the Tithe Commission and successor bodies 3 812
TS Records created or inherited by the Treasury Solicitor and HM Procurator General's Department 85 42484
UGC Records created or inherited by the Higher Education Funding Council for England 25 3233
WALE Legal Records Relating to Wales 30 1273
WARD Records of the Court of Wards and Liveries 16 31096
WO Records created or inherited by the War Office, Armed Forces, Judge Advocate General, and related bodies 393 612118
WORK Records of the successive works departments, and of the Ancient Monuments Boards and Inspectorate 85 62875
ZBOX Unfinished and unpublished texts, calendars and finding aids held in the Public Record Office 2 20
ZHC Publications of the House of Commons, including some of the House of Lords 3 12173
ZHL Publications of the House of Lords 2 3094
ZJ London Gazettes 1 1503
ZLIB Publications formerly held by the British Transport Historical Records Office library 29 7234
ZMAP Maps and plans formerly held by the Public Record Office Library 6 297
ZOS Publications of the Ordnance Survey of Great Britain 15 8597
ZPER Periodicals formerly held by the British Transport Historical Records Office library 134 3861
ZSPC Publications and other materials formerly held by the British Transport Historical Records Office library 11 855
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