Japan
Tempo gold Koban (Ryo) ND (1837-1858) AU55 PCGS, Edo mint, KM-C22b, JNDA 09-21. 59x31mm. 11.22gm. A gently handled gold issue bathed in a pleasing honeyed patina and scattered wisps precluding this piece from finer certification.
https://coins.ha.com/itm/japan/japan-tempo-gold-koban-ryo-nd-1837-1858-au55-pcgs-/a/61229-97221.s?type=DA-DMC-CoinArchives-WorldCoins-61229-09262021
HID02906262019
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Estimate: 1200-1500 USD