Catalog
See full images - free registration
Continue with Google - no registration!
or register with email
Why register? Just to keep bots out of our catalog. Your email stays private - we will never share it or send you anything uninvited. We guarantee you that!
50 Pence Trial
| Issuer | United Kingdom |
|---|---|
| Year | 1967 |
| Type | Log in to see details |
| Value | 50 Pence (0.50) |
| Currency | Log in to see details |
| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
| Shape | Log in to see details |
| Technique | Log in to see details |
| Orientation | Log in to see details |
| Engraver(s) | Log in to see details |
| In circulation to | Log in to see details |
| Reference(s) | Log in to see details |
| Obverse description | Log in to see details |
|---|---|
| Obverse script | Latin |
| Obverse lettering | Log in to see details |
| Reverse description | Log in to see details |
| Reverse script | Log in to see details |
| Reverse lettering | Log in to see details |
| Edge | Log in to see details |
| Mint | Log in to see details |
| Mintage | 1967 |
| Additional information |
The 50 pence piece did not officially enter circulation until 1969, but pattern and trial strikes were produced in advance to test the heptagonal design — the first seven-sided coin intended for general British circulation. The Reuleaux heptagon shape was specifically chosen because it rolls at a constant diameter, allowing vending machines to accept it without modification despite its irregular outline.
This 1967 trial predates the decimalization switchover by four years.