I'm not seeing any doubling or errors just a normal quarter and definitely not an "experimental planchet".
It's yellow! If it were painted the pics under the microscope would be complete coverage not appearing as if it were blended magnesium. Maybe.
how in the world did you think of that????A lot of other things besides paint can make it yellow anyway its not an error.
I came up with that doing research. There were a few found in 1999 and again in 2001. A Pennsylvania a new jersey, anyway, pcgs shows Very similar coins. Well, thank you for your responses.
Add to the list that there were third party companies that gold plated coins at an exorbitant mark up price and people later let them loose into the general coin population as they are really seen as altered (PMD) coins and only worth face value. My 2 cents worth https://www.ebay.com/sch/i.html?_fr...m570.l1311&_nkw=gold+plated+quarters&_sacat=0
Thanks for sharing that experimental coin but it looks like that "Anti-Tarnishing Agent" was a bust. But it brings up a good point that the mint evidently was playing with experimental finishes on coins in 2001. To the OP- I don't know fr sure, but 99.999% of the time colors like this are caused by environmental factors. If you are convinced it's what you think, the only way to confirm it is to send it off for verification. Be prepared for a less than positive decision though.
How are you going to know if you don't ask, right? Enjoyed your post, thanks for sharing. Welcome to CT, keep posting, good luck!
If after doing the research, you are fairly convinced it is an experimental, spend the money to have it authenticated. Us trying to do it from your photos isn't the best way.
This little piggy went to NGS forum, this little piggy went to PCGS forum and this little piggy went to CU forum. But all the smart ones stayed RIGHT HERE at the best forum