cinclodes ✭

It's a shame to hear about all the counterfeits that are discussed here and an armed robbery at a coin store and other crimes mentioned at numismaticcrimes.org. Years ago, I visited a coin shop in th… (View Post)

This is the first time I have heard of numismaticcrimes.org. It's sad that there is a need for such an organization, but it's good to know that they are there to push back against crime. (View Post)

That's a nice set! When I put together a full set, it took a long time to find a 1916-S obv with a legible mint mark. Maybe it was just bad luck, but I looked at several with a mint mark that was a s… (View Post)

I did some calculations for nickels for the case of a 4% per year attrition rate. I included the mintages of all nickels from 1866 until 1964. I stopped the calculation after 1964, which was a year w… (View Post)

I think it would be rather easy to obtain some meaningful results. When dealing with large populations, simple statistical approaches are often very effective at revealing patterns. I will take a sho… (View Post)