カタログ
| 表面の説明 | Obverse die trial with entirely blank fields, devoid of any effigy, legend, or device. A central circular perforation pierces the planchet. The rim is raised and well-defined, consistent with a milled trial striking. The plain field shows the characteristic surface of an unworked die face. |
|---|---|
| 表面の文字体系 | ログイン して詳細を見る |
| 表面の銘文 | ログイン して詳細を見る |
| 裏面の説明 | ログイン して詳細を見る |
| 裏面の文字体系 | ログイン して詳細を見る |
| 裏面の銘文 | BRITISH WEST AFRICA · 1920 · |
| 縁 | ログイン して詳細を見る |
| 鋳造所 | ログイン して詳細を見る |
| 鋳造数 | ログイン して詳細を見る |
| 追加情報 |
Trial pieces for the British West African penny series were produced ahead of the 1920 transition from bronze to copper-nickel, a compositional shift driven partly by wartime metal economics that had disrupted bronze supply chains across British colonial minting programs. The Royal Mint and its contract minters needed approved reverse dies before full production runs could begin.
Reverse trials of this type were never released into circulation and exist in very small numbers, typically retained in official or institutional collections.