"Mint Sealed Proof & Mint Sets"?

This is something I actually wondered about myself. I will be curious to hear this answer. Thanks for posting it.

I did not think they did ,as I have bought several sets from Dealers that were not sealed.
If it is indeed fact that they were never sealed by the mint how do Ebayers get away with all the false Claims. I thought ebay was regulated?

Some people are honestly confused on the situation because the environmental storage (i.e. high humidity) of these sets could cause them to seal over time. Thus when the sets are pulled out of a box years later and are sealed, the person may think that it came that way from the Mint.

But yes, many sellers tend to play up the "potential" of a sealed set for unknowing people and some even go so far as to create new envelopes and then seal them.