The Museum is home to a spectacular series of gold and silver trial plates dating from 1477, these plates being the officially approved standards against which the composition of coins can be independently checked by comparative assay.

Browse highlights of the trial plates collection below.

 

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Trial of the Pyx

Trial of the Pyx

Since at least 1282, coins produced by the Royal Mint have been checked at the Trial of the Pyx.

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Isaac Newton, Warden and Master of the Royal Mint 1696-1727

Isaac Newton, Warden and Master of the Royal Mint 1696-1727

Newton took an active interest in mint affairs.

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The Royal Mint Coat of Arms

The Royal Mint Coat of Arms

In 1978 a previously unnoticed draft Grant of Arms to the Royal Mint was discovered.

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Charles Fremantle, Deputy Master of the Royal Mint 1868-1894

Charles Fremantle, Deputy Master of the Royal Mint 1868-1894

A key figure in the history of the Royal Mint.

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