Watch List notes:

JAPAN. Japan - Mexico. Ansei Trade Dollar (3 Bu or San Bu), ND (ca. 1859-60). PCGS AU-55 Gold Shield.
KM-101(host not listed, KM-377.4); JNDA-09-57(44A); Jacobs/Vermeule-J101; Bank of Japan Collection-76/77; Dav-272; Early Japanese Coins-Pg.132, fig.9.89 (countermarks only); U.S. Mexican Numismatic Association Journal-December 2015 pg. 10 (this piece plated). Issued between late 1859 until 12 May 1860. Large characters variety. Four Japanese characters "Aratame San Bu Sada" (determined to be 3 Bu worth of silver) individually applied between the rays from 11 to 2 on the obverse of an 1859-DoCP Mexican Republic 8 Reales from the Durango Mint. VERY RARE and of the roughly 60 examples we have recorded this is the only one we are aware for this mint mark. An attractive well preserved example with lovely rich golden grey tone that deepens around the devices and crevasses.

Mexican "Dollars" were exchangeable for 3 Bu of silver, as in accordance with Article V of the Treaty of Amity and Commerce, signed 29 July 1858 and enacted 4 July 1859, as set forth by the Consul-General Townsend Harris. It wasn't until Yokohama opened up for trade in 1859 that silver coins began being countermarked.

From the Kyle Ponterio Collection.

Ex: Auction-net mail bid sale # 10 October 1, 2012 Lot # 0428.

Ex: "Ogawa Seihoro Collection" Auction April 4, 1994 Lot # 3-127.

With Japanese Numismatic Dealers Association (JNDA) certificate of authenticity serial number 35895.

Estimate: $7000.00- $9000.00