1. IOR/W/L/PS/21/N4/16F Reference (shelfmark): IOR/W/L/PS/21/N4/16F Title: Sheet 16F [DUKALA Preliminary Edition] 1917. Scope & Content: Registered 1916. Reg.No.3428. D 16 (D.O.6). 130.Two copies, stamped 'Specimen Map'. Collection Area: Map Collections Languages: English Date Range: 1917 Extent: Two copies, stamped 'Specimen Map'