1. IOR/W/L/PS/21/N4/23N 1915 Reference (shelfmark): IOR/W/L/PS/21/N4/23N 1915 Title: Sheet 23N [RUSHKAR-I-BALA First Edition] 1915. Scope & Content: Registered 1914. Reg.No.220 D.D.D.1914–S.I.–500.Four copies. Collection Area: Map Collections Languages: English Date Range: 1915 Extent: Four copies