Hello, my favorite people!! :)
I havethese two uncirculated quarters are this weird bronze/darker color. The NY quarter has the bronze/dark toning on both the reverse & obverse. except the obverse has a circle-like portion that is blue toned. The NC quarter has the more obvious bronze/dark toning on the reverse & the obverse is a mix between the bronze/dark & blue (which is really pretty actually)!
I was wondering if anyone could let me know why they would be this color? This is probably not an error question, but I figured I'd ask just in case someone knew!
1st pic is the 2 bronze/dark toned quarters reverse (top) compared to another set of same quarters without the toning (bottom)



