Distinctive Features:Compiled and signed by a Special Committee on the Aden Defences formed of Engineers Lieutenant Colonel C.W. Grant and Major Artillery William Jacob, Bombay 23rd April 1844.Contains ‘PLAN of the BATTERY & TOWER on the Extreme or SOUTHERN POINT of MARSHAG’ and ‘PLAN of the TOWER and BATTERY on the highest part or TABLE LAND, MARSHAG at the POINT B’ with corresponding longitudinal sections and elevations. Lettered for reference.Labels:On verso, upper right: ‘Duplicate ADEN Sea Defences Proposed on Marshag'. ‘No. 32’.1 sheetMaterials:Pen and ink with wash on paper with additions in pencilDimensions:570 x 1404 mm