Mexico 1808 Mo Silver 8 REALES  with Chop Marks CAROLUS IIII 

chopmark??????  Mexico 1808 Mo Silver 8 REALES with Chop Marks  8 REALES CAROLUS IIII 

hese coins are known as Spanish colonial coinage because they circulated freely in the many New World colonies of Spain. You can find essentially the same coins in Bolivia, Chile, Columbia, Guatemala, Mexico, Peru

A “chop mark” is a Chinese character or characters stamped into a coin by a merchant who is essentially validating the weight, authenticity, and value of a given coin. This facilitated the circulation of silver coins in the Orient, which was the intended market for U.S. Trade Dollars. Chop marks vary in size and shape, and a particular coin may show only one chop mark or it may be chop marked so often and so severely as to be almost mutilated.(PCGS )

also ,you can join Chopmark Collectors Club 

Chop marked 8 Reales dated before 1858 are scarce 

European trade with China began in 1517 when Portuguese merchant ships arrived on the Chinese coast. The came to buy silk and porcelain, and the Chinese merchants wanted silver, preferably large European-style silver coins. China was the destination of much of the silver coming from the mines of Spanish-America.

its woth noting there was NO official silver coinage in China until 1890.