


© The Royal Mint, 2022
50 Pence - Elizabeth II Alan Turing; Silver Piedfort
2022 yearSilver (.925) | 16 g | 27.3 mm |
Issuer | United Kingdom (United Kingdom, British Overseas Territories and Crown Dependencies) |
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Queen | Elizabeth II (1952-2022) |
Type | Non-circulating coin |
Year | 2022 |
Value | 50 Pence 0.50 GBP = USD 0.66 |
Currency | Pound sterling (decimalized, 1971-date) |
Composition | Silver (.925) |
Weight | 16 g |
Diameter | 27.3 mm |
Shape | Equilateral curve heptagon (7-sided) |
Technique | Milled |
Orientation | Medal alignment ↑↑ |
Updated | 2024-10-09 |
Numista | N#332429 |
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Rarity index | 94% |
Reverse
An image depicting a cogwheel accompanied by inscription set against background of letters.
Script: Latin
Lettering: ALAN TURING
Engravers: Matthew Dent, Christian Davies
Edge
Plain
Comment
The seventh release in the Innovation in Science series, the coin was issued individually. It was also struck in silver proof, silver piedfort and gold proof.© The Royal Mint, 2022
The coin includes several hidden codes as seen below:
Code 1: The 3 words ‘GEARS GRIN THAN’ when entered into What 3 Words (https://what3words.com/gears.grin.than) take you to Cambridge University, where Alan Turing Studied Mathematics.
Code 2: ONLY A FORETASTE OF WHAT’S TO COME - This quote came from his reflections of his code-breaking machine, Bombe.
Code 3: CD AND MD, the designers initials.
© Changechecker
Interesting fact
One interesting fact about this coin is that it features a unique design on its reverse side, which depicts a representation of Alan Turing's famous "Turing Machine" - a theoretical model for computation that he proposed in the 1930s. This design was chosen to commemorate Turing's contributions to computer science and artificial intelligence, and it makes the coin stand out from other coins in the series.