1. IOR/L/MIL/17/5/4252 Reference (shelfmark): IOR/L/MIL/17/5/4252 Title: Internal security instructions, India, 1937. New Delhi, GSI, 1937. Scope & Content: Maps; Secret Collection Area: India Office Records and Private Papers Languages: English Date Range: 1937 Extent: v, [63]p, 33cm