1. IOR/L/PS/11/140, P 4903/1918 Reference (shelfmark): IOR/L/PS/11/140, P 4903/1918 Title: P 4903/1918 China: mineral resources of Yunnan province; visit of a party of American engineers Collection Area: India Office Records and Private Papers Languages: English Date Range: 9 Aug 1918-8 Nov 1918 Extent: 1 file