FORVM has a short article by Ilya Prokopov on detecting fakes struck with modern dies. It is well worth reading.
A brief discussion on FORVM's boards shows what might be a clever fake of a Greek coin detected using the technique.
On Open Data and Numismatic Typologies - *edit (2 October 2015, 4PM): I want to make it clear that we have been collaborating with numerous members of the Coins and Medals departments for several ...
5 days ago