I haven't used them for spacers,but I have used them for washers. I have set coins as butt caps for the birth year of the customer.
Silver coins would make nice spacers as well as the 1966 to 1969 clad coins. It is not illeagal to cut up a coin but it is illegal to change the face value.
vine pattern, huh, I'll bet that was neat.
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Sola Fide