COIN SPECIFICATIONS One of our club’s young numismatists asked the following question: why are U.S. coins the sizes and weights they are? The answer is that the sizes and weights of U.S. coins weren’t chosen randomly. They come from a mix of history, practicality, metal values, and standardization. Here’s the breakdown: 1. Early Coinage &…
I was recently asked to review a couple hundred ‘error’ coins. Though many were marked as Double Die, not one coin was a true Doubled Die. These coins were all the result of strike doubling. Strike doubling is one of the many terms (a.k.a. shelf, shift, or machine doubling) used to describe a doubling effect…
