1. IOR/L/MIL/17/5/2191 Reference (shelfmark): IOR/L/MIL/17/5/2191 Title: Training manual - signalling (provisional) 1915, Indian supplement. Calcutta: GSI, 1917. Scope & Content: [Issued with Indian Army Order No 341 of 1917] Collection Area: India Office Records and Private Papers Languages: English Date Range: 1917 Extent: [viii], 138p, 14cm