The English fifty shilling coin, worth 50/-, was only ever minted once, in the year 1656. It was a milled gold coin weighing and with a diameter of . Only eleven examples are known to survive. One extremely fine specimen was recorded to have been sold for £15,250 in May 1989.
A lustrous example was sold in London in January 2021 for £471,200 ($643,597 U.S.) including the 24 percent buyer’s commission, setting a new record price for a Cromwellian coin.
The obverse of the coin depicts Oliver Cromwell as a Roman Emperor, with the inscription — "Oliver, by the grace of God, of the Commonwealth of England, Scotland, Ireland, etc. Protector". The reverse depicts a crowned shield bearing the Commonwealth arms, with the inscription — "Peace is sought through war", and the date 1656, while there is also an edge inscription — "A protector of the letters, the letters are a garland and a safeguard to the coinage".
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