coin machine doubling coin world

Coin World Sneak Peak on Unique Machine Doubling Examples

An unusual case of machine doubling What is called “machine doubling” is a fairly common occurrence on coins and is a manifestation of press instability, writes Mike Diamond in his “Collectors’ Clearinghouse” column. The featured coin this week displays…
nova constellatio coins

Nova Constellatio Coppers – Coins

Nova Constellatio Coppers [sgmb id="1"] The Nova Constellatio coppers, dated 1783 and 1785 and without denomination, were struck in fairly large quantities in Birmingham, England, beginning in 1785, and were shipped to NewYork where they entered circulation. Apparently they…