JAPAN: Tokugawa, 1603-1868, AE mon (3.14g), Mito mint, H-4.215, JNDA-71, Shin Kanei Tsuho type, to above on reverse, bronze bosen (seed or mother) coin for iron type, cast from 1864, a superb example! EF. Kudo lists this type as produced only as mother coins, basically a pattern type.