hi, I'm selling some coins for a friend, and one of the coins he gave me is a unc 1940 quarter. The quarter has deep iridescent toning (kind of like an oil spill would look), and I was wondering if this made the coin more or less valuable. Any insight would be great. Btw here is a poor photo
Through the iridescence, does the coin appear to have highly reflective, almost mirror or mirror surfaces? If so, then it is probably a Proof and depending on the grade, is will fetch a pretty good price! It is really hard to tell what the grade is from the pictures and a picture of the Obverse and Reverse are needed. As far as the iridescent look, many of the older Silver Proof Quarters seem to take on an iridescent look sometimes called a haze when not properly stored. I have one that has turned to an almost brownish/charcoil color but still has the beautiful mirror surfaces and it kind of unique looking. Frank
It's definitely not a proof, and only the reverse has toning, there is no toning on the front. Thank you all for your input.
It's either from an original mint set or from an old album. Coins stored in either of these for long periods often develop this type of toning. And yes - to the right buyer, it can often be worth considerably more than an untoned coin.
