1. IOR/L/PS/11/163, P 2541/1919 Reference (shelfmark): IOR/L/PS/11/163, P 2541/1919 Title: P 2541/1919 Arabia: Geological Mission to Hadramaut Collection Area: India Office Records and Private Papers Languages: English Date Range: 4 Aug 1918-24 Sep 1927 Extent: 1 file