1. IOR/Q/11/47 No.20 Reference (shelfmark): IOR/Q/11/47 No.20 Title: Memorandum on the Indian Mines Department (for the Public Services Commission, 1923), submitted by A.H. Ley, Secretary to the Government of India, Department of Industries and labour Collection Area: India Office Records and Private Papers Languages: English Date Range: 1912-1923 Extent: 1 file