other
| Country | Japan | Denomination | 1 yen |
|---|---|---|---|
| Year | Mintmark | Japan Mint (Osaka) | |
| Metal | aluminum | Purity | 1.0 |
| Weight g | 1.0 | Silver oz | |
| Gold oz | Premium | ||
| Notes | Obverse features a young tree sapling symbolizing the growth of Japan; the year is written as "昭和四十一年" (Shōwa Year 41). | ||