Chop marks on coins are Chinese characters stamped onto coins by merchants in order to validate the weight, authenticity and silver content of the coin. Starting .
Definition: A chop mark is a Chinese character that has been stamped into a coin by a Chinese merchant who authenticated the coin's weight.
Chopmarks are counter-stamps or punches, struck into coins by Merchants would test coins and then stamp them with a mark of their own.
In PCGS began certifying Trade dollars with chop marks, and today these Trade dollars are valued by collectors.
I just picked up my first Papal States coin. It's a 4 Soldi coin with a chop mark on the bottom of the obverse down by the date. Do these marks.
There are probably no coins more interesting than United States Trade dollars. usually have groups of Trade dollars and other silver coins with chop marks.