1. IOR/F/4/1237/40404 Reference (shelfmark): IOR/F/4/1237/40404 Title: Scope & Content: Difficulties experienced at the Madras Mint in alloying pure silver with copper - discovery that these difficulties were due to incorrect trial plates having been in use for many years at the Royal Mint in London. Collection Area: India Office Records and Private Papers Languages: English Date Range: Nov 1824-Jan 1829 Extent: 1 file