Why does machine doubling /mechanical damage occur? Machine doubling or mechanical damage is worthless doubling. Machine doubling may occur when the minting press strikes a blank planchet and makes itRead More
US and World Major Mint Errors and Die Varieties
Why does machine doubling /mechanical damage occur? Machine doubling or mechanical damage is worthless doubling. Machine doubling may occur when the minting press strikes a blank planchet and makes itRead More