I have a 1910 G.B.penny that had a void in the planchet that can be seen on both sides even though they mashed together when the coin was struck. It can be seen with the naked eye.
Would this be considered substantial?
What I know is 1911 Chinese dollar. This is one of my inherited coins and i dont know didly. coin ia about 39 1/2mm across, 3 1/2 to 4 thick.
You gotta remember my eye sight is getting bad.
My mind too, I cant find my scale.