King George V (1911-1936) This unique 1970-S Proof Quarter from the United States was overstruck on a Canadian Quarter that circulated during the reign of King George V from 1911-1936. It was authenticated and certified by NGC as PR64. This was most likely from the group of San Francisco Proof Errors that was auctioned by […]
The post Mike Byers Mint Error News – Unique 1970-S Proof Washington Quarter Overstruck on Canadian Quarter appeared first on CoinWeek.