Can coin doctors AT coins in the holders?
fivecents
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Has anybody heard of coin doctors toning coins that are in the grading service holders? This would be one way to bypass the bodybags for AT. I have seen several toned proof coins in the big two's holders(NGC and PCGS) designated deep cameo. These coins were heavily toned with beautiful color and showed no signs of cameo whatsoever. It makes my wonder if the color appeared on the coin after it was certified.
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<< <i>I do know that if you submit proof coins in polybags inside of poly-vinyl 2 1/2 x 2 1/2 flips that the slab sealing process will tone the coins. That is why PCGS sent out flyers telling submitters to send coins in mylar 2 1/2 X 2 1/2 flips without the polybags. >>
PCGS says it will haze the proof not tone it.
Do you have a picture of a coin toned from this?
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since 8/1/6
<< <i>Do you have a picture of a coin toned from this? >>
No, but I am sending it off to airplanenut to photograph. It is an awesome rim toned Smithson 5$ gold proof (PR69DC)with lots of color. This coin could not even be called a cameo with all the heavey toning. I sent this coin in myself about three years ago and it was a tone free blazer. I like the coin much, much, better with the toning.
Since acrylic is an amorphous polymer (non-crystalline), it does not have a melting point. It simply softens more and more as its temperature is raised.
At about 300F, acrylic will begin to soften.
Commercial polymers are very rarely NEAT. NEAT in the industry is short for Nothing Else Added To. Virtually all polymers have various additives that improve physical properties, burn characteristics, and/or processability. These include impact modifiers, UV stabilizer, melt flow enhancers, antioxidants, mold release agents, flame-retardants, and the list goes on.
While acrylic is an inert material, additives can and do de-gas from the host polymer. Over time and/or at higher temperatures (150F), what effects would these additives have on a coins surface?
Is PCGS’s guarantee with regards to the coins grade indefinite? If present, has PCGS considered the effects additives have on the coin within the slab?
Looking for PCGS AU58 Washington's, 32-63.