attempt to establish a bimetallic system. The Xiaoqian were only worth 0.7 tael of silver per string of 1000 coins (which would equate to 14.3 Xiaoqian per fen of silver), however by the middle of the eighteenth century the Xiaoqian disappeared from circulation. By 1702 all provincial mints were closed again due to the aforementioned circumstances. Mint marks Under the Kangxi Emperor cash coins with the inscription Kangxi Tongbao were produced with both a Chinese character and a Manchu character on the reverse side of the coin at provincial mints, while the Ministries of Revenue and Public Works in the city of Beijing, Zhili exclusively used Manchu characters. Ministry of Revenue and Ministry of Public Works Provincial mints Commemorative issues In 1713 a special Kangxi Tongbao (康熙通寶) cash coin was issued to commemorate the sixtieth birthday of the Kangxi Emperor, these bronze coins were produced with a special yellowish colour, and these cash coins believed to have "the powers of a charm" immediately when it entered circulation, this commemorative coin contains a slightly different version of the Hanzi symbol "", at the bottom of the cash, as this character would most commonly have a vertical line at the left part of it but did not have it, and the part of this symbol which was usually inscribed as "" has the middle part written as a "" instead. Notably, the upper left area of the symbol "" only contains a single dot as opposed of the usual two dots used during this era. Several myths were attributed to this coin over the following 300 years since it has been cast such as the myth that the coin was cast from molten down "golden" (brass) statues of the 18 disciples of the Buddha which earned this coin the nicknames "the Lohan coin" and "Arhat money" because the Kangxi Emperor was intimately involved with Christian missionaries and developed a contempt for Buddhism. These commemorative kāng xī tōng bǎo cash coins were given to children as yā suì qián (壓歲錢) during Chinese new year, some women wore them akin to how an engagement ring is worn today, and in rural Shanxi young men wore this special kāng xī tōng bǎo cash coin between their teeth like men from cities had golden teeth. Despite the myths surrounding this coin it was made from a copper-alloy and did not contain any gold but it was