1 Sen - Shōwa (1938 - 1940)
Features
| Denomination | 1 Sen |
| Catalog Number | Y# 56 |
| Weight (g) | 0.9 |
| Diameter (mm) | 17.6 |
| Thickness (mm) | 1.7 |
| Shape: | Round |
| Composition: | Aluminum |
| Not Magnetic | |
| Orientation | Medal orientation ↑↑ |
| Demonetized | |
| Calendar | Japanese (Shōwa) |
Obverse
Lettering:
本 日 大
年 四 十 和 昭
本 日 大
年 四 十 和 昭
Reverse
Lettering:
一
錢
一
錢
Edge
Description:
Smooth
Smooth
| Year | Mintage | Comment | Rarity |
|---|---|---|---|
| 13 (1938) | 45,502,266 | Common | |
| 14 (1939) | 444,602,146 | Very Common | |
| 15 (1940) | 601,110,015 | Very Common |


