1. IOR/X/14240/53M Reference (shelfmark): IOR/X/14240/53M Title: Sheet 53M Tolingmath First Edition 1940, reprinted 1945. Sheet H-44B. Previous Provisional Issue 1900; Preliminary edition 1930. Reg.No.2296 D'40 (D.O.6–3/8") 250'41–X'45. Grid I (Yards). Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: Two copies.