CHAPMAN CODES
| Channel_Islands-CHI | |||
| Alderney-ALD | Jersey-JSY | Guernsey-GSY | Sark-SRK |
| England-ENG | |||
| Bedfordshire-BDF | Berkshire-BRK | Buckinghamshire-BKM | Cambridgeshire-CAM |
| Cheshire-CHS | Cornwall-CON | Cumberland-CUL | Derbyshire-DBY |
| Devon-DEV | Dorset-DOR | Durham-DUR | Essex-ESS |
| Gloucestershire-GLS | Hampshire-HAM | Herefordshire-HEF | Hertfordshire-HRT |
| Huntingdonshire-HUN | Kent-KEN | Lancashire-LAN | Leicestershire-LEI |
| Lincolnshire-LIN | London-LND | Middlesex-MDX | Norfolk-NFK |
| Northamptonshire-NTH | Northumberland-NBL | Nottinghampshire-NTT | Oxfordshire-OXF |
| Rutlandshire-RUT | Shropshire-SAL | Somerset-SOM | Staffordshire-STS |
| Suffolk-SFK | Surrey-SRY | Sussex-SSX | Warwickshire-WAR |
| Westmoreland-WES | Wiltshire-WIL | Worcestershire-WOR | Yorkshire-YKS |
| East_Yorkshire-ERY | West_Yorkshire-WRY | North_Yorkshire-NRY | Isle_of_Wight-IOW |
| Isle_of_Man-IOM |
| Ireland-IRL | |||
| Armagh-ARM | Carlow-CAR | Cavan-CAV | Clare-CLA |
| Cork-COR | Donegal-DON | Down-DOW | Derry-DRY |
| Dublin-DUB | Fermagh-FER | Galway-GAL | Kerry-KER |
| Kildare-KID | Kilkenny-KIK | Londonderry-LDY | Leitrim-LET |
| Leix-LEX | Limerick-LIM | Longford-LOG | Louth-LOU |
| Mayo-MAY | Meath-MEA | Monaghan-MOG | Offaly(Kings)-OFF |
| Roscommon-ROS | Sligo-SLI | Tipperary-TIP | Tyrone-TYR |
| Waterford-WAT | Westmeath-WEM | Wexford-WEX | Wicklow-WIC |
| Scotland-SCT | |||
| Aberdeenshire-ABD | Angus-ANS | Argyll-ARL | Ayrshire-AYR |
| Banffshire-BAN | Berwickshire-BEW | Bute-BUT | Caithness-CAI |
| Clackmannanshire-CLK | Dumfriesshire-DFS | Dunbartonshire-DNB | East_Lothian-ELN |
| Fife-FIF | Invernesshire-INV | Kincardineshire-KCD | Kircudbrightshire-KKD |
| Kinrossshire-KRS | Lanarkshire-LKS | Midlothian-MLN | Moray-MOR |
| Nairnshire-NAI | Orkney_Islands-OKI | Peebleshire-PEE | Perthshire-PER |
| Renfrewshire-RFW | Ross_and_Cromarty-ROC | Roxburghshire-ROX | Selkirkshire-SEL |
| Shetland_Isles-SHI | Stirlingshire-STI | Sutherland-SUT | West_Lothian-WLN |
| Wigtownshire-WIG |
| Wales-WLS | |||
| Anglesey-AGY | Breconshire-BRE | Caernarvonshire-CAE | Cardiganshire-CGN |
| Carmarthenshire-CMN | Denbighshire-DEN | Flintshire-FLN | Glamorgan-GLA |
| Merioneth-MER | Monmouthshire-MON | Montgomeryshire-MGY/small> | Pembrokeshire-PEM |
| Radnorshire-RAD |
| International | |||
| Australia-AUS | Austria-OES | Belgium-BEL | Canada-CAN |
| Czechoslovakia-CS | Finland-FIN | France-FRA | Germany-GER |
| Greece-GR | Hungary-HU | Italy-ITL | Liechtenstein-FLI |
| Luxembourg-LUX | Netherlands-NL | Norway-NOR | New_Zealand-NZ |
| Poland-POL | Portugal-PT | Romania-RO | South_Africa-RSA |
| Soviet_Union-SU | Spain-ESP | Sweden-SWE | Switzerland-CH |
| USA-USA | Yugoslavia-YU |