1858-1860年泰國/墨西哥鷹洋貿易銀元加蓋壹圓銀幣。拉瑪四世。Krisadaolarn/Mihailovs-pg. 148 皇冠和脉轮图案加戳於墨西哥 1853-Mo GG 8 雷亚尔上。极稀罕且难得的版别，远较其他菲律宾及日本加盖珍稀。根据铸打传统，通常由财政部进行加盖，但更多的现代学术研究表明这些加戳乃私人铸製的。无论如何，毫无疑问，仅少数倖存至今，如此高品相更是少之又少。虽经流通，主体币细节依然完整，不见重大瑕疵；加盖虽见磨损但依然俊俏深邃。我们首次经手此珍罕版别，相信定会引起许多热爱泰国造币的藏家关注。1853-Mo GG เหรียญเงินเม็กซิโก/รัชกาลที่ 4 ประทับตรา จักรี และ มงกุฎ ชนิดราคา 8 เรียล(Real) เป็นเหรียญที่หายากมาก ๆ ประเมินความยากกว่า เหรียญเม็กซิโก ประทับตรา (countermar) ของฟิลิปปินส์ และ ญิ่ปุ่น ในยุดเดียวกัน สภาพเหรียญยังคงใว้ด้วยลายละเอีดที่ดีTHAILAND. Thailand - Mexico. Trade Dollar, ND (1857-60). Rama IV. NGC VF-30; Countermark: VF Standard.KM-C-141.8; LeMay-pg. 95, pl. XXII, 5, Krisadaolarn/Mihailovs-pg. 148, pl. F05. Issued by decree of 7 January 1857. Mongkut and Chakra countermarks on a Mexico 1853-Mo GC 8 Reales. An incredibly SCARCE and difficult type, far surpassing the roughly contemporaneous Philippines, but are slightly more common than Japanese countermarks from the same period. According to numismatic tradition this type was countermarked by the Royal Treasury, though more modern scholarship suggests that these were produced locally in Bangkok. Whatever the case, it is beyond dispute that few have survived to the present day, and even fewer still in condition as attractive as this piece. Though circulated, the host coin maintains a plethora of details and is pleasantly problem free. The counterstamps, though showing wear, are still boldly impressed and handsome. As our first offering of the type in many years, this example is certain to command much attention from the many bidders who love the Thai series of coinage.This interesting and seldom encountered issue should be considered the first Crown size coin of Thailand. Several Royal proclamations were issued specifically pertaining to the use and exchange of foreign silver "Flat coins" that were imported for trade. Initially, the exchange rate fluctuated as the supply of imported specie could not keep up with the demand of re-minting them into Pot Duang (Bullet coinage). The 7 January 1857 decree finally stipulates that a fixed rate of exchange was one Tamlung one Baht (five Baht) to three foreign silver coins and that they could be exchanged at the Royal Treasury. Since different types of foreign coins were being imported many merchants were hesitant to accept them in trade at the prescribed rate. Later several more decrees were issued to try to address the hesitation of the merchants refusing to accept them in transactions even going so far as penalizing those who declined them. Eventually, the most common coin in circulation at the time, the Mexican "Dollar", often referred to as "Bird" coins became the standard being marked on the obverse with the Chakra wheel and Mongkut emblems.</em>
