1. IOR/X/14240/31I Reference (shelfmark): IOR/X/14240/31I Title: Sheet 31I [Dizak First Edition] 1915. Heliozincographed SIO Dehra Dun. Reg.No.394 D.D.D.–1915–S.I.–500. Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: 1 item