The reason I ask..
Sometimes when Im trying to take advantage of shipping and handling incentives from U.S dealers, Ill throw in a few Kennedy Halves to add to my collection. I like the look and weight of them, and they are cheap enough to buy. I do have about a dozen silver ones from the mid 60's I especially enjoy.
Anyway I bought a cellophane enclosed 1978P and D for 2 bucks each in my last purchase from my last ebay transaction from a U.S seller.
The coins are really toning up nicely, a nice consistant 'tea-staining' colour.. for the lack of a better word... acoss the entire coin, both sides
It was my thought that only when air is exposed to coins do they tone up. The cellophane has completely sealed seams so Im confused if they were toned up and then put in the cellophane after the fact or how this occured
Also, can you buy them single/loose in cellophane from the mint or would they have been cut out from a complete proof like set. I think I seem to recall that you can buy them in rolls.
Thanks for any help.