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I have some milk spots that seem to have appeared after grading

Started by KMAG100,

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KMAG100

KMAG100

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I understand that true milk spots occur during the process of the planchet at the mint, and these spots can not be removed. My question does these type of milk spots (planchet process created) occur immediately or can they show up a couple of months to a couple of years later after minting? I have a couple of silver proofs that were graded and I think the spotting has occurred after encapsulation. My concern is it something to do with how I am storing the coins? Also with milk spots related to the planchet process do they seem to get larger over time or do they seem to remain the same size? If milk spots form several months or years after minting is that an indicator that it is environmental opposed to planchet process, thus can be removed?

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CHRISS

CHRISS

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Milk spots can and often appear years after a coin is made. Milk spots can change over time becoming larger. It is best to store a collection in a dry place as free from temperature fluctuations as possible. Poor storage conditions can have an adverse affect on the development of milk spots.

 

Chris, NCS

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