2019 W American Memorial Park Improperly Annealed Planchet?

Thanks John1. Would acetone work on this one?

it's toning. not an improper annealing. it would need a dipping to remove it if you wanted to do that. it looks nice though and I see no reason to remove the toning it's got a really long way to go before it becomes a problem.

It's early though for it to be toned that much, so it's definitely an "artificial toning" and was accelerated somehow.

Thanks John1 Big-Kingdom and Coinfrog. I'm leaving this as is but now I know for future reference

Thanks coop. I have a few of these to be graded but this isn't one of them. Bought this because of the eye appeal and price. It may be artificial but it looks great to me

@RW1010 The quarter in a few years will be a superb toning coin. (last photo the best) We can see the formation of the spectrum.

PS.: I do not suggest you to use anymore those gloves. Those has latex and powder which can affect the coins in the 50% or more humidity. Employ those blue free of powder and latex.

An update on this topic. Here's what I believe to be another improperly annealed W quarter. Whenever I see the grain of the strip being revealed on a struck coin that implies it has been improperly annealed. I read that somewhere but can't find it right now. This error has a certain look most of the time but not all are the same. I had one graded and it confirmed my suspicions. Not super rare or valuable but a little more clarity on this type of error

very nice error coin, thanks for reporting back on this topic.

Thanks E&V Dearborn and jbuck. You all have been very helpful patient and encouraging in my learning experience on this forum