I have a 1999 Conneticut Quarter that appears to have an extra layer of copper on it and also higher ridges than normal on both sides. No etching on the side either. I'm no coin expert so excuse any wrong terms. Just wondering if it's worth anything or just a cool find.
It's hard to say. The ridges could have been ground off. An extra layer of copper is unlikely. It's always important to weigh the coin, that will answer a lot of questions. And, always show both sides of the coin. Clear photos. Off hand it's over 99% that your coin is just damaged, post mint. But you never know. That's why you need more photos and the weight.h As for thickness, it could be a slightly thicker rolled planchet, and your coin would weigh a little bit more. 5.67 grams for clad quarters.
First, welcome to the neighborhood! Photos of the obverse and reverse would help, but my best guess based on the image you provided is that the coin has been "spooned". In other words, someone has continually tapped the outer edge of the coin with a spoon, and as the edge becomes wider, it also appears deeper from the obverse and reverse. A hint to me that this was the cause for this post-mint damage is because there are no ridges on the edge. All of our quarters have ridges on the edge. It is not unusual to find such coins. Chris
I have never spooned with a coin but I always look at smoothed-ridge coins as casino coins or vending machine coins, in which the repeated process of going through the slot machine/clothes dryer wears them down. it is also good to keep in mind that the 1999P CT state quarter was the first of the state series. various finished were tried...I think some may even have been struck on different materials. it was a while since I read the article but they are out there. good luck!
