| Alt_Ref_No | R Lib |
| Ref No | 578-K/1/6/2/41 |
| Title | Nieuport, Belgium, T.S. 23 |
| Description | Trenches corrected to 17 Jul 1917. Enemy trenches in red, British trenches in blue. |
| Date | 17 Jul 1917 |
| Format | Printed document |
| Edition | 2nd |
| Publisher | 4th Field Survey Company, R.E., new reference (1599) |
| Extent | 1 item |
| Access Status | Open |