The Joanna Tansley Collection of Patterns, Proofs and Coining Trials

George V (1910-1936), Trial Farthing, 1933, in silver, bust left as the currency coins, rev. Britannia seated right, royal mint trial above, 1933 in exergue, edge plain, 4.66g/12h. Very weakly struck and with a possible air bubble inside the flan, two test marks on rim, otherwise very fine and of the highest rarity, believed the only known specimen (£500-800)

This lot was sold as part of a special collection, The Joanna Tansley Collection of Patterns, Proofs and Coining Trials.

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Examined at the Royal Mint in 1979. Records at the Mint refer to the preparation of a special pair of farthing dies in 1933 with the word farthing on the reverse die replaced by the words royal mint trial. The dies were required in connection with trials for the new security edge then being developed by the Mint, but unfortunately few other details associated with the piece are now known