Japan
Tempo gold Koban (Ryo) ND (1837-1858) AU (lightly cleaned), Edo mint, KM-C22b, JNDA 09-21, Hartill-8.24 (ER). 33x59mm. 11.16gm. An incredibly pleasing example, the noted light past cleaning leaving a slightly dulled appearance to the tops of the stamps, while the recesses remain lustrous and filled with die polish, not a trace of wave present in the flan.
HID02901242017
Estimate: 1200-1400 USD