I was looking at a well circulated 1899 silver British
Trade dollar in G, with three chopmarks.
The odd thing that hit me was... whenever we handle coins, just how much metal do we take off the coin? 1 microgram?
Here's a picture of my coin in G and a reference same year coin in XF
for comparison
This coin must have circulated through two million hands to go from XF to G! now that's a lot of hands!


