1. IOR/L/PS/11/200, P 3676/1921 Reference (shelfmark): IOR/L/PS/11/200, P 3676/1921 Title: P 3676/1921 Report on the Siamese Royal Survey Department of the Army Collection Area: India Office Records and Private Papers Languages: English Date Range: 11 Feb 1920-16 Aug 1921 Extent: 1 file