4 framed Gallipoli 'Trench Maps' by the Royal Naval Division, similar to above; dated: 16/9/15 Trench Diagram of Left and Centre Sectors (4th Issue); Diagram of Advanced Turkish Trenches and Communications (5th Series); 10/12/15 Diagram of Enemy Trenches (litho); 5/11/15 Trench Diagram of Left and Centre Sectors (6th Series). 2 portrait, 2 landscape. 20 x 32.5 cm