AMS 1. Reprinted 1943 by A.M.S. United States. Army Map Service Great Britain. War Office. General Staff. Geographical Section. G.S.G.S. no. 4379 In upper left margin: Sicily 1:5,000. Relief shown by contour lines at 10 metres interval and rock drawings. Sources: Italy 1:25,000 G.S.G.S. no. 4228 sheets: 277/ IV S.W., 277 / IV S.E., 1941. Italy 1:100,000 G.S.G.S. 4164 sheet 277, 1942. Intelligence information 1943. Air photographs have been used in the production of this plan.