Greetings,
I was recently offered this grouping of counterfeit Canadian Superman coins that I presume are of Chinese origin. At a glance they looked very good but on closer examination the devices are not crisp and consistent with RCM quality. The weights are light 1 to 2 Grams so I assume they are not the correct dimensions either. Redundantly, all coins (except carded 50c stamp set) fail Sigma Metalytics resistance and conductivity test.
* As a side note, recently, I have noticed a spike in counterfeit coins being offered. In the last couple months I have seen: the above lot, a Gold clad Tungsten counterfeit Maple Leaf with scratches that looked, weighed, and measured genuine but failed Sigma testing, 2 Kilo Pandas that were too thick but weighed nearly correct, and the typical Chinese Dollars