1. IOR/X/14240/83N (2) Reference (shelfmark): IOR/X/14240/83N (2) Title: Sheet 83N : Sheet G-46L Patkai Range GSGS 4218 First Edition 1943. Compiled and published originally SGI 1936. Published WO 1943. Heliographed OSO 1943. 2,500/11/43F. Grid IIB (Yards). Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: Two copies.