| Alt_Ref_No | R Lib |
| Ref No | 578-K/1/6/2/20 |
| Title | Thun Saint Martin, Iwuy and Avesnes-les-Aubert, France sheet 51A SW |
| Description | German trenches corrected to 18 Sep 1918. Overprinted in blue on G.S.G.S. 2742 (O.S. Mar 1918). |
| Date | 18 Sep 1918 |
| Format | Printed document |
| Edition | 5B |
| Publisher | Ordnance Survey/Field Survey Battalion (10692) |
| Extent | 1 item |
| Access Status | Open |