1. IOR/L/E/6/51, File 1460 Reference (shelfmark): IOR/L/E/6/51, File 1460 Title: File S&C 1460/1880 - Proposal for a larger and better instrument for solar photography in India than the photoheliograph used at Dehra Dun Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1880-Jan 1881 Extent: 1 file