1. IOR/L/E/7/1521, File 7280 Reference (shelfmark): IOR/L/E/7/1521, File 7280 Title: File 7280 Reconnaissance for Seaplane Bases in the Persian Gulf Collection Area: India Office Records and Private Papers Languages: English Date Range: 6 Sep 1927-15 Feb 1928 Extent: 1 file