JAPAN: Tokugawa, 1603-1868, AE mon (3.31g), 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, VF to EF, R. Kudo lists this type as produced only as mother coins, basically a pattern type.
Estimate: 75- 100 USD