George VI (1936-1952), Trial Farthing, 1951, struck in copper-nickel, edge plain, 2.84g/12h. About as struck, extremely rare £400-£500

this coin and the following lot were acquired directly from a Royal Mint employee at the time

XRF analysis of the obverse shows 75.9% copper and 23.8% nickel; analysis of the reverse shows 78.7% copper and 21% nickel. This is similar to the alloy of a copper-nickel Sixpence (75.4% copper, 24.4% nickel).