| Added by |
 Steve
|
| Face value | 3 Pence |
| Catalog code (Michel) | GB-NI 13 |
| Catalog code (Scott) | GB-NI MH2 |
| Catalog code | Yvert et Tellier GB 629 Stanley Gibbons GB NI13 AFA number GB 596 Unificato GB 629 |
| Series | Machin |
| Stamp colour | Ultramarine |
| Watermark | None |
| Stamp use | Definitive stamp |
| Issue date | 07/07/1971 |
| Designer | Arnold Machin / Jeffrey Matthews |
| Paper type | 2 phosphor bands |
| Print technique | photogravure |
| Printed by | Harrison & Sons Ltd. |
| Perforation | comb 15 x 14 |
| Height | 24.00 mm |
| Width | 21.00 mm |
| Catalog prices | Used stamp $0.30 Unused stamp $0.40 |
