Watch List notes:

JAPAN: Nagasaki Trade Coinage, LOT of 20 AE genho tsuho, cast 1659-85 at the Nakajima mint in Nagasaki specifically to pay Dutch and Chinese traders; average circulated conditions; retail value $250, lot of 20 pieces. Under the Tokugawa shogunate, Japan enforced a strict isolationist policy (sakoku) and forbade the entrance of outsider. Foreign trade was only allowed on Dejima, a 120 x 75m (390 x 250ft) artificial island in the Nagasaki Bay connected to the mainland by a single bridge. With the exception of Japanese traders and courtesans, contact with foreign trader was strictly forbidden, as was the export of Kan'ei Tsuho coins and maps of Japan.

Estimate: 80-120 USD