Copy letter from Herbert Rix, to Mr Preece 'Immediate Dear Mr Preece, I find that the price of Palladium is now eight guineas an ounce, and making due allowance for difference in density, the Davy medal in Palladium would yet cost between £46 and £47 instead of under £30. This seems to be an insuperable difficulty. Yours faithfully, H Rix Asst Sec RS [Assistant Secretary, Royal Society] The Mint would be willing to strike in palladium HR [Herbert Rix]'. 9 November 1888