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50 Pounds - Elizabeth II Alan Turing, polymer
| Issuer | Bank of England |
|---|---|
| Year | 2021-2023 |
| Type | Standard circulation banknote |
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|---|---|
| Obverse lettering | Bank of England I PROMISE TO PAY THE BEARER ON DEMAND THE SUM OF FIFTY POUNDS Fifty Pounds © THE GOVERNOR AND COMPANY OF THE BANK OF ENGLAND 2020 |
| Reverse description | The reverse pays tribute to mathematician and computing pioneer Alan Turing, centred on a portrait of Turing alongside technical imagery evoking his foundational work in computer science, including representations of early computational concepts and binary patterns rendered in olive-green and teal tones against a complex guilloche background. A sunflower motif and cross-sections referencing Turing's mathematical biology research appear in the design, along with his birth and death years and a facsimile of his signature. |
| Reverse lettering | Bank of England Fifty Pounds This is only a foretaste of what is to come and only a shadow of what is going to be Alan Turing 1912-1954 © THE GOVERNOR AND COMPANY OF THE BANK OF ENGLAND 2020 |
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