1859年日本安政贸易银（改三分定银）壹圆银币。 发行于 1859 年末至 1860 年 5 月 12 日之间。大字版。瓜纳华托铸币厂所铸，在 1858-Go PF 墨西哥8 雷亚尔的正面 光束，11 点至2点之间的位置加盖四个日文字符 "改三分定" 。所有铸币厂纪录总计约 60 枚，其中大约 15 枚来自瓜纳华托铸币厂。这个稀有的版别经常被收藏家误解，认为只是一个在亚洲流通过的外币；事实上，此版对日本和美国的钱币学和历史来说具有更大意义和重要性。发行时间短暂，是两国之间国际贸易关係开端的实体见证。硬币主体保存完好，加盖细节深邃清晰，底板深处显现丰富的旧信封古铜色包浆，潜藏大量馀光。 <p><em>墨西哥"壹圆"当时可兑换 3 分银，这是根据总领事汤森哈里斯于 1858 年 3 月 31 日签署并于 1859 年 7 月颁布的《友好通商条约》第五条规定。直到 1859 年横滨开放贸易，银币才被加盖。</em><p><em></em> JAPAN. Trade Dollar (3 Bu or San Bu), ND (1859). Ansei Era. NGC AU-55. KM-101.2 (plate coin); JNDA-09-57(44A); J&V-J101 (plate coin); Dav-272 (plate coin). 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 oclock on the obverse of an 1858-Go PF Mexican Republic 8 Reales from the Guanajuato Mint. We have about 60 examples documented for all mints, with about 15 of them being from the Guanajuato Mint. Often misunderstood by collectors, these <strong>RARE</strong> issues are of far greater significance and importance to Japanese and American numismatics and history than a mere foreign coin that circulated in Asia. Only issued for a brief period, they are physical remainders of the beginning of an international trade relationship between these two countries. The countermarks are boldly applied with clear definition of the fine details on a nicely preserved host coin. This lovely example displays rich old envelope patina with plenty of underlying luster in the protected areas. <p><em>Mexican "Dollars" were exchangeable for 3 Bu of silver, which was in accordance with Article V of the Treaty of Amity and Commerce, signed March 31, 1858 and enacted July 1859 as set forth by the Consul-General Townsend Harris. It wasnt until Yokohama opened up for trade in 1859 that silver coins were countermarked.</em> Ex: Dr. Norman Jacobs Collection
