1. IOR/L/PS/11/52, P 1553/1913 Reference (shelfmark): IOR/L/PS/11/52, P 1553/1913 Title: P 1553/1913 Persian Gulf: mail service during the war Collection Area: India Office Records and Private Papers Languages: English Date Range: 2 Jan 1913-12 Aug 1918 Extent: 1 file