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| 正面描述 | 登录 以查看详情 |
|---|---|
| 正面文字 | 登录 以查看详情 |
| 正面铭文 | ELIZABETH II·D·G·REG·F·D·50 PENCE·2021· J.C (Translation: Elizabeth the Second by the Grace of God Queen Defender of the Faith) |
| 背面描述 | The reverse presents a stylised tribute to the pioneering Victorian mathematician and computer scientist Charles Babbage, rendered in a design evoking punched card data encoding as used in early mechanical computing. The name 'charles' appears in lowercase lettering across the upper register, separated by vertical columns bearing groups of horizontal dashes representing encoded binary data. The surname 'babbage' is prominently displayed in bold lowercase characters across the centre of the field. Beneath, a sequence of numerals — 2, 1, 2, 2, 1, 7, 5 — occupies the lower register, also interspersed with punched-card column motifs, the digits corresponding to the alphanumeric encoding of Babbage's name. The engraver's initials NT appear at the base of the design. |
| 背面文字 | 登录 以查看详情 |
| 背面铭文 | 登录 以查看详情 |
| 边缘 | Plain |
| 铸币厂 | 登录 以查看详情 |
| 铸造量 | 登录 以查看详情 |
| 附加信息 | 登录 以查看详情 |