THIS IS JAPAN Showa Yr. 14 - 1939 10 SEN, Chrysanthemum Flower WWII COINAGE

Composition     Aluminium bronze
Weight     4 g
Diameter     22.0 mm
Thickness     1.74 mm
Shape     Round with a round hole
Technique     Milled
Orientation     Medal alignment ↑↑
Demonetized     Yes
References     Y# 58, JNDA# 01-29