1. IOR/X/14136/23K Reference (shelfmark): IOR/X/14136/23K Title: Sheet 23K : Sheet I-40Q Aiaz GSGS 3919 First Edition 1942. Compiled and published originally SGI 1917 and revised to 1941. Published WO 1942. Heliographed OSO 1942. 1,036/7/42F. Grid B. Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: 1 item