Quote: Isn't today's world nuts? You have to learn to grade a coin and determine if it's fake in order to determine if the slab is fake.
What also bothers me is a dealer I know showed me a slab that had a different coin in it that was not what was supposed to be there. The dealer said it had been opened, coin replaced, resealed to look like new. Now I wonder how many others are like that.
Quote: What also bothers me is a dealer I know showed me a slab that had a different coin in it that was not what was supposed to be there. The dealer said it had been opened, coin replaced, resealed to look like new. Now I wonder how many others are like that.
Quote: Would seem TPGs could design some kind of tamper evident seal, although it sounds like Conder's fracture test does the same thing almost all the time.
The new PCGS slabs interlock on themselves internally which does that.
The seal is supposed to be tamper resistent on all versions, every now and then with the NGC or old PCGS slabs one would get out that just didn't have a strong seal and if you went to crack it out it would just split in two when you hit it. I've only seen it once on an NGC one
Quote: The seal is supposed to be tamper evident on all versions, every now and then with the NGC or old PCGS slabs one would get out that just didn't have a strong seal and if you went to crack it out it would just split in two when you hit it. I've only seen it once on an NGC one
I recall seeing a video on this several years ago. If I recall correctly the person who made the video could tell by the sound of the slab when tapped on a surface that the ultrasonic seal was weak and could be cracked opened easily.
Quote: I recall seeing a video on this several years ago. If I recall correctly the person who made the video could tell by the sound of the slab when tapped on a surface that the ultrasonic seal was weak and could be cracked opened easily.
I wish I had known before hand, would have been interesting to see how hard it was to get it open. I remember just hitting it once wrapped in a towel and feeling it come apart completely. It was a very clean separation along the seal line but it did chip a little bit where I had hit it.
I assume something just went wrong during the seal, but now I kind of wonder if there was just something defective about the plastic on that one that didn't allow a proper seal
Yeah, that was several years ago, so yeah, that problem was obviously corrected. Probably some sort of equipment failure and even just not properly adjusted. Ultrasonic assembly can be touchy and if the operator is not familiar with how it should work and even sound when all is functioning properly problems can go undetected.
Quote: Something like that happening is fairly rare because the slab rarely split open easily enough to not show evidence of fracturing along the edge.
Our counterfeiters are so good today they can make almost anything and sometimes better than the original.
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Posted 02/07/2019 11:25 pm
