| Issuer | United Kingdom |
| Year | 1817 |
| Type | Pattern |
| Value | 1 Crown (1/4) |
| Currency | Pound sterling (1158-1970) |
| Composition | Silver |
| Weight | |
| Dimensions | |
| Thickness | |
| Shape and Technique | Round Milled |
| Orientation | |
| Engraver(s) | William Wyon |
| In circulation to | |
| Reference(s) | KM#PnB77 |
| Obverse description | Laureate portrait of King George III right, legend around, date below. |
| Obverse script | Latin |
| Obverse lettering | GEORGIUS III D: G: BRITANNIARUM REX F:
D:
1817
W. WYON. (Translation: George the Third by the Grace of God King of the Britains Defender of the Faith) |
| Reverse description | Three standing, robed female figures with national emblems, legend around, palm-branch and quiver in exergue. |
| Reverse script | Latin |
| Reverse lettering | FOEDUS INVIOLABILE
W. WYON (Translation: Inviolable league) |
| Edge | Plain |
| Mint | |
| Mintage | 1817 - Proof - |
| Catalog ID | 3089519430 |
| Comments |
