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In browsing ebay I noticed some 2017-S PCGS PF-70 ASE coins with what the seller identified as having multiple milk spots. He told me they appeared after the coins were encapsulated.
In browsing ebay I noticed some 2017-S PCGS PF-70 ASE coins with what the seller identified as having multiple milk spots. He told me they appeared after the coins were encapsulated.
The TPGs know this can, and does, happen and their guarantees specifically address and exclude it.
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PCGS Guarantee of Grade and Authenticity - United States and World Coins
...This guarantee shall not apply to coins exhibiting environmental deterioration subsequent to certification, including spotting on modern silver coins...
PCGS Guarantee of Grade and Authenticity - United States and World Coins
...This guarantee shall not apply to coins exhibiting environmental deterioration subsequent to certification, including spotting on modern silver coins...
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NGC Guarantee
...In certain Coins, natural environmental deterioration may cause undesired features to appear, such as (but not limited to) spotting, hazing, PVC and corrosion. Spots, for example, can occur on modern silver Coins as a result of the minting process or other natural conditions over which NGC has no control. Therefore, the NGC Guarantee does not apply to Coins exhibiting any of these issues...
NGC Guarantee
...In certain Coins, natural environmental deterioration may cause undesired features to appear, such as (but not limited to) spotting, hazing, PVC and corrosion. Spots, for example, can occur on modern silver Coins as a result of the minting process or other natural conditions over which NGC has no control. Therefore, the NGC Guarantee does not apply to Coins exhibiting any of these issues...
When it comes to copper coins, things can get even more dicey. See this thread in the TPG Coin Grading forum about NGC's 10 year rule for copper coins
Edited by BadDog
07/28/2019 2:13 pm
07/28/2019 2:13 pm



















