1. IOR/X/14240/31B Reference (shelfmark): IOR/X/14240/31B Title: Sheet 31B [Geh] Second Preliminary Edition 1919. Registered 1917. Heliozincographed SIO Calcutta. Reg.No.1466 D.17 (D.O.6). 500. Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: 1 item