Published for both England and Wales, and Scotland, these maps are a black and white half-inch base map, with coloured main roads. First class roads are in red, and Second class in green.
Originally published with the start of road numbering in 1923, these maps were frequently updated to show the revised status of road classification.
We have a selection of these maps, as listed below, in the orange Ordnance Survey covers (SC), and dissected in buff covers (BU), folding to roughly A4 size.
The sheet lines are the same as for the standard half-inch series. See the index diagram above right.
For an explanation of the table layout and abbreviations used, please click here.
Prices below include postage.
| Item No. | Sheet No. | Area (print code, notes) | Date | Cover/ Format | Cond-ition | £ |
| 3. | 1 | Jedburgh, Berwick upon Tweed and Alnwick (500/26) | 1926-27 | BU/d | 2/3 | 8.00 |
| 5. | 2 | Carlisle (1000/28) | 1928-29 | BU/d | 1/2 | 9.50 |
| 7. | 2 | Carlisle (1000/28, front cover detached) | 1928-29 | SC/c | 2/4 | 7.00 |
| 8. | 3 | Newcastle upon Tyne | 1924-25 | BU/d | 1/1 | 10.00 |
| 10. | 3 | Newcastle upon Tyne (1000/26) | 1924-25 | BU/d | 1/2 | 9.50 |
| 11. | 3 | Newcastle upon Tyne (1000/26, hinge splitting) | 1924-25 | SC/d | 2/4 | 8.50 |
| 12. | 4 | Isle of Man was not published in this series | . | . | . | . |
| 16. | 6 | Middlesbrough, Richmond and Ripon (1000/27) | 1927-28 | BU/d | 3/4 | 6.00 |
| 19. | 7 | Whitby and Scarborough (1500/23, slight foxing) | 1922-23 | SC/c | 3/3 | 9.00 |
| 20. | 7 | Whitby and Scarborough (550/26) | 1926-27 | BU/d | 2/2 | 9.00 |
| 21. | 7 | Whitby and Scarborough (550/26) | 1926-27 | BU/d | 2/3 | 8.00 |
| 31. | 11 | Carnarvon, Bangor and Colwyn Bay (2550/23) | 1922-23 | BU/d | 1/1 | 10.00 |
| 32. | 11 | Carnarvon, Bangor and Colwyn Bay (2550/23) | 1922-23 | BU/d | 2/2 | 9.00 |
| 36. | 13 | Sheffield (grubby) | 1924-25 | BU/d | 4/4 | 4.00 |
| 39. | 14 | Lincoln and Grimsby (750/27) | 1927-28 | BU/d | 2/2 | 9.00 |
| 42. | 15 | Barmouth and Aberystwyth (1000/27, front cover corner chipped) | 1927-28 | SC/p | 1/2 | 13.50 |
| 43. | 15 | Barmouth and Aberystwyth (1000/27) | 1927-28 | SC/c | 2/3 | 11.00 |
| 44. | 15 | Barmouth and Aberystwyth (1000/27) | 1927-28 | BU/d | 1/2 | 9.50 |
| 48. | 16 | Wrexham, Shrewsbury and Hanley (2550/23) | 1922-23 | BU/d | 1/1 | 10.00 |
| 50. | 16 | Wrexham, Shrewsbury and Hanley (1000/26) | 1926-27 | BU/d | 3/2 | 8.50 |
| 53. | 17 | Derby, Nottingham and Leicester | 1924-25 | BU/d | 4/3 | 5.00 |
| 54. | 17 | Derby, Nottingham and Leicester (annotated with bold circles) | 1924-25 | BU/d | 3/3 | 5.00 |
| 57. | 20 | Pembroke and Fishguard (1500/23) | 1922-23 | BU/d | 1/1 | 10.00 |
| 62. | 23 | Birmingham Leamington and Northampton (2800/23) | 1922-23 | BU/d | 3/2 | 8.00 |
| 65. | 23 | Birmingham Leamington and Northampton (750/26, ex-MOT annotations, mostly re-numbering, manuscript date Nov. 1935, spine taped) | 1926-27 | SC/p | 3/3 | 9.00 |
| 67. | 23 | Birmingham Leamington & Northampton (1000/27, grubby) | 1926-27 | BU/d | 4/4 | 4.00 |
| 68. | 24 | Bedford and Cambridge (2800/23, annotated with bold circles) | 1922-23 | BU/d | 3/3 | 5.00 |
| 70. | 24 | Bedford & Cambridge (1000/27) | 1927-28 | BU/d | 1/2 | 9.50 |
| 71. | 25 | Bury St.Edmunds and Ipswich | 1924-25 | BU/d | 1/1 | 10.00 |
| 72. | 25 | Bury St.Edmunds & Ipswich (1000/27) | 1927-28 | BU/d | 1/1 | 10.00 |
| 73. | 26 | Swansea (five places underlined) | 1924-25 | BU/d | 1/1 | 9.00 |
| 75. | 27 | Gloucester Monmouth & Newport (1000/28) | 1926-27 | BU/d | 1/2 | 9.50 |
| 77. | 27 | Gloucester Monmouth & Newport (1000/28) | 1926-27 | BU/d | 4/3 | 5.00 |
| 79. | 28 | Oxford and Swindon | 1924-25 | BU/d | 1/1 | 10.00 |
| 80. | 28 | Oxford & Swindon (1000/28) | 1924-25 | BU/d | 1/1 | 10.00 |
| 81. | 28 | Oxford & Swindon (1000/28) | 1924-25 | BU/d | 3/1 | 8.50 |
| 82. | 28 | Oxford & Swindon (1000/28) | 1924-25 | BU/d | 3/2 | 8.00 |
| 84. | 30 | Colchester (2550/23) | 1922-23 | BU/d | 1/1 | 10.00 |
| 89. | 32 | Bristol and Cardiff (1000/26) | 1926-27 | BU/d | 2/1 | 9.50 |
| 90. | 32 | Bristol & Cardiff (1000/26, front cover detached) | 1926-27 | SC/p | 3/4 | 6.50 |
| 98. | 36 | Plymouth, Torquay & Exeter (2900/23, slight damp marks on map) | 1922-23 | BU/d | 2/1 | 8.00 |
| 99. | 37 | Weymouth, Yeovil and Taunton (small annotation) | 1922-23 | SC/p | 3/2 | 8.50 |
| 101. | 37 | Weymouth, Yeovil and Taunton (2900/23, many roads inked over) | 1922-23 | SC/c | 3/4 | 3.00 |
| 102. | 40 | Chatham, Margate & Hastings | 1924-25 | BU/d | 3/2 | 8.00 |
Full details of this series, and over 1,000 other map series, including all the variant editions, and any related district maps can be found in Ordnance Survey small-scale maps : indexes 1801-1998 by Roger Hellyer. Far more than just index diagrams.
You might also be interested in Map cover art by John Paddy Browne, which is the standard work on Ordnance Survey map covers.