Thanks for the link. That is exactly what our concern is - chemical alteration. One dealer said there is a chemical test that can be done to...
Any suggestion where I might find a scale that finite? I have a grams scale but needless to say it does not do 100th! Thanks for your help.
The 2004 D silver colored penny my daughter has is a duplicate of a regular penny except for the uniform silver gray color. I looked on the US...
Separate names with a comma.