F. Michael Fazzari on cast fakes

F. Michael Fazzari writes for Numismaster that Cast Counterfeits Share Some Traits. The article includes two coin surfaces under extreme magnification. The first has pimples of metal because it is a cast fake. The second is genuine and has pimples because it was heated. Fazzari says the pimples on the genuine coin can be “squeezed flat with your finger.”