Discussion in 'Error Coins' started by Bonnie B Viveiros, Jan 17, 2020.
on the reverse..
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It looks like the raised lines you see are from die polishing. ~ Chris
Coin dies are polished to remove scratches in the surface of a die in order to produce a proof-like coin. It is a very skilled and time consuming process.
Die Cleaning is an action done to the dies while they are in service to remove debris so the dies can produce a better looking coin. This is a very aggressive action that uses course grit sanding that in turn leaves lines scratched into the dies.
Point taken! ~ Chris
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