カタログ
| 表面の説明 | ログイン して詳細を見る |
|---|---|
| 表面の文字体系 | Latin |
| 表面の銘文 | ログイン して詳細を見る |
| 裏面の説明 | The reverse is entirely blank, consisting of a plain, unadorned field with no design, legend, or devices of any kind. This is consistent with the nature of this piece as an obverse trial strike, produced solely to evaluate the obverse die. The surface shows the texture of a struck but undesigned planchet, confirming its status as a uniface trial. |
| 裏面の文字体系 | ログイン して詳細を見る |
| 裏面の銘文 | ログイン して詳細を見る |
| 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 British West Africa were produced in London, typically at the Royal Mint, to test alloy compositions before committing to full production runs. Tin brass was evaluated as a cheaper alternative to the nickel-brass and cupro-nickel alloys used in circulation coinage for the region — West African humidity and salt air accelerated corrosion in ways that made alloy selection genuinely consequential, not merely economical.
Trials from 1920 survive in very small numbers and were never released to circulation.