20 Pence - Elizabeth II Quincentenary of the College of Arms, Platinum Proof
€370,717.00
| Issuer | Isle of Man |
| Year | 1984 |
| Type | Non-circulating coin |
| Value | 20 Pence |
| Currency | Pound (decimalized, 1971-date) |
| Composition | Platinum (.950) |
| Weight | 11.3 g |
| Dimensions | 21.4 mm |
| Thickness | |
| Shape and Technique | Equilateral curve heptagon (7-sided) Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | Obverse: Arnold Machin Reverse: Leslie Lindsay |
| In circulation to | |
| Reference(s) | KM#116c, Schön#132c |