Japan, 1938 AD., Hirohito (Showa era), 1 Sen, KM Y 56.

Japan, Hirohito (Showa era), 1938 AD.,
1 Sen (ø 17,6 mm / 0,90 g), aluminium, 0,9 g theor. mint weight, mintage 45.502.266 , axes medal alignment ↑↑ (0°), plain edge,
Obv.: · 本 日 大 · / 年三十和昭 , mythological 'crow' bird Yatagarasu in center within clouds flanked by cherry blossoms, issuing authority above, Showa era date below; 大日本 = Dainippon , 大= great, 日本 = Japan, 年三十 = regnal year 13 (of the Showa era), 昭 和 = Showa era. .
Rev.: 一 / 錢 , chrysanthemum above value in center of sacred mirror within wave-like wreath, 一 = 1, 銭 = Sen.
KM Y 56 ; JNDA 01-50 .

Showa era Year (AD.) / Mintage / Details
13 (1938) 45.502.266 年三十和昭
14 (1939) 444,602,146 年四十和昭; Type A (left inner stroke in 四 is tilted)
14 (1939) 年四十和昭; Type B (left inner stroke in 四 is symmetric to right inner stroke)
15 (1940) 601,110,015 年五十和昭