1. IOR/L/PS/11/166, P 473/1920 Reference (shelfmark): IOR/L/PS/11/166, P 473/1920 Title: P 473/1920 Mesopotamia: use of photography from the air for mapping areas for land revenue Collection Area: India Office Records and Private Papers Languages: English Date Range: 9 Dec 1919-2 Feb 1920 Extent: 1 file