Watch List notes:

JAPAN: RYUKYUS: Sho Tai, 1848-1879, AE 100 mon (22.59g), H-6.27, JNDA-138.1, small characters, cast 1862-63, light reverse adhesion, EF, ex Charles Opitz Collection. The 100 mon Ryukyu Tsuho coin was an oval-shaped coin modeled after the Japanese Tenpo Tsuho coin of the same denomination. Like the Tenpo Tsuho, its face value was placed at 100 mon, but its weight was merely 6 to 7 times that of a 1 mon coin. Despite this, Satsuma Domain ordered that it would circulate at the value of 124 mon, which made it a profitable coin to manufacture, but this made the coin unpopular in circulation.

Estimate: 75-100 USD