This short articles continues the recent run of articles on the theme of forgeries; this time in relation to my interest in West Indies cut and countermarked coins, and the encapsulation of such coins.
Caveat Emptor – Even with Slabbed Coins – By K. V. Eckardt
BNS Research Blog 
Just read your blog, and couldn’t agree more. I’m not quite sure if stamping ‘COPY’ on the coin would work, because maybe people would have different opinions. Which expert checks the ‘expert’? However the point is well made and certainly the businesses doing the encapsulation need to involve more ‘experts’ within their ranks to cover all the angles.
Eric makes a very good point and one would need/want to be absolutely positive before stamping a coin COPY. However, in my experience (limited to West Indies cut countermarked coins and British Tradesman Countermarked Dollars) the vast majority of modern fakes are clearly identifiable as to their true standing and a numismatist experienced in these fields should have no problems after examination of the diagnostics. Natural circulation wear and toning is near on impossible to replicate on these countermarked coins and additionally many are so poorly made (the faker having insufficient knowledge of the series) that identification is often readily discernable. A small minority of specimens are much more difficult and really do require the collaboration of several experienced people … Manville X92 Rothsay Mills 4/6 is a perfect example.
Learning about the hammered pieces recently posted on the BNS Research Blog is rather frightening in that the fakes seem to be so convincing that seen in isolation could pose a real problem for student/collectors to determine their true nature as the diagnostics mentioned above for countermarked coins may not apply to these pressure cast fakes of hammered coins . Caveat Emptor.