He said he has been in the business since 1993 and has owned his shop at 56 Avenue A for 15 years. Konvelski said there is an undeniable recent uptick in the number of fake bullion coins, or coins ...

Counterfeit coins can be detected more easily thanks to a novel approach Researchers harness the power of image mining and machine learning to detect tiny flaws in fake coins Date: May 14, 2024 ...

Authentic antique coins are often found buried or submerged, whereas replica coins will be buried or submerged to make them look more authentic. Small-angle scattering Neutron grating interferometry ...