| Issuer | British Indian Ocean Territory |
| Year | 2018 |
| Type | Non-circulating coin |
| Value | 4 Pounds |
| Currency | Pound sterling (2008-date) |
| Composition | Silver (.999) (Antique finish) |
| Weight | 62.21 g |
| Dimensions | 50 mm |
| Thickness | |
| Shape and Technique | Round Milled (high relief) |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | KM#23 |
| Obverse description | Effigy of Queen Elizabeth II facing right, legend around with date. |
| Obverse script | Latin |
| Obverse lettering | ELIZABETH II • 2018 • BRITISH INDIAN OCEAN TERRITORY • PM |
| Reverse description | A Siren sitting on the rocks playing her harp. The skulls that can be seen around her on the rocks represent the sailors that had previously been lured and their ships wrecked. The latest ship to be attracted to the wonderful music can be seen in the background. |
| Reverse script | Latin |
| Reverse lettering | £4 |
| Edge | Reeded |
| Mint | (PM) Pobjoy Mint, Surrey, United Kingdom (1965-2023) |
| Mintage | 2018 PM - High relief; Hand finished - 650 |
| Catalog ID | 9848427760 |
| Comments |
