1. IOR/W/L/PS/21/N4/23O 1915 Reference (shelfmark): IOR/W/L/PS/21/N4/23O 1915 Title: Sheet 23O [KAIN First Edition] 1915. Scope & Content: Registered 1914. Reg.No.177 D.D.D.1914–S.I. 500.Four copies. Collection Area: Map Collections Languages: English Date Range: 1915 Extent: Four copies