Issue 13 of Robert Matthews' Counterfeit Coin Newsletter is available on his web site. It includes short coverage of a 2009 'hoard' of late Roman bronze, then ten most expensive counterfeits authenticated by PCGS, Turkish tourist fakes, and as usual coverage of fake UK 1 pound coins.
(There is also a nice photo of an ornamental vase made of old coins the author saw on holiday in the Ukraine.)
Newton and the Counterfeiter is briefly reviewed, as well as scientific papers on "Using the optical mouse sensor as a two-euro counterfeit coin detector" and "Laser and electron beams physical analysis applied to the comparison between two silver tetradrachm Greek coins".
Consolidated GeoJSON for Nomisma concepts - For many years, maps on Nomisma.org have shown a map for many types of numismatic concepts. At first, this map was restricted only to showing a single po...
4 weeks ago