Sheet 18 El 'Arish GSGS 4386 First Edition 1943, printed 1944. Copied from MDR 1006/1698 Middle East map July 1942. Published WO 1943. Photolithographed OS 1943. 2,000/1/44 Ch. Egyptian [red] Grid, Palestine Grid. [Adjoining sheets 14 to 17, 22, 23.]