Hi, Dave, that device would show ANY shaved gold coin- whether Krug, Dbl Eagle, Maple or Panda-- to be outside of acceptable eight tolerances based upon a weight factor. Krugs in particular would be melted, re-poured with a tad less gold, the pouring sprue be filled to look like a reeded edge, and still look like a Krug, and even pass electrical impedence testing. The obverse/reverse Krug design wasn't that complicated.
So, yes, you saw a weighing device. However, hollowed Krugs filled with titanium would pass that weight test...check the proximity of their specific gravity if you have any doubts.
The only device that caught the hoards of phoney Krugs at all the ANA shows back in the late 70s early to mid 80s was an electrical impedence measuring testing Krug holder. It permitted the sending of a low amperage current through a Krug, perched in that special non-conductive holder Those that were titanium filled registered higher impedence than the standard Krug/Copper gold mix.
Also, the FBI's X-Ray machine (about the size of today's color laser photocopier) could spot the ti-filled ones in seconds.
I wish I had one of those convenient electrical Krug testing holders....I've tried various voltmeters and haven't found one as sensitive as the ones the ANA dealers used to detect the milliamperage differences between the real and the ti-filled Krugs.
Every dealer that has one is hanging onto it tightly--understandably!! Once burned, twice shy is their credo!
gold_tutor |
