Japan
Manen gold Koban (Ryo) ND (1860-1867) AU (light surface hairlines), KM-C22d, Hartill-8.26. 22x28mm. 3.23gm. Admirably struck with deep, sharp flan crenulations and just the most minor friction atop the highpoints keeping it shy of uncirculated.
HID02901242017
Estimate: 600-800 USD