Japan
Tempo gold Koban (Ryo) ND (1837-1858) AU55 PCGS, Edo mint, KM-C22b, JNDA 09-21. 60x33mm. 11.27gm. A tempting representative bathed in a deep honeyed amber patina masking hairlined fields noted for the sake of accuracy.
Ex. Pacific Coast Auction Galleries (September 1983, Lot 1988)
https://coins.ha.com/itm/japan/japan-tempo-gold-koban-ryo-nd-1837-1858-au55-pcgs-/a/61204-99204.s?type=CoinArchives61204
HID02906262019
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Estimate: 800-1000 USD