Sometimes planchets for one coin denomination are fed into a coin-stamping press equipped with dies of another denomination. This results in a coin that has been stamped with a design intended for a ...
6. The Proof Coin Pops Finally, we have the proof coin errors. Proof coins are typically struck for collectors, and they usually have a mirror-like finish. But sometimes, these coins can have ...
Manufacturing errors might be annoying when it comes to most products, but they can be a massive moneymaker when it comes to collectible money. Errors increase the ...