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…
coins of the obama era

Coins of The Obama Era – Bullion Coins

Bullion Coins 2016 30th Anniversary American Silver Eagle The popular American Silver Eagle program that launched in 1986 was celebrated in 2016 with the issuance of a special-edition, edge-lettered silver eagle marking the 30th anniversary of the series. The 2016-W proof American…
clad coins

What are Clad Coins?

The half dollar, quarter dollar, and dime coins are clad coins with 3 layers of metal. The 2 identical outer layers are an alloy of 75 percent copper and 25 percent nickel. The inner layer is copper. The outer…