That's a good point about the rim. The rim is higher than the effigy. I also measured the coin after you mentioned the edge must have been ground down. It is 0.1 mm smaller than other quarters.

You must be right. Someone must have ground it down for some reason.

Thanks for your help.

Hi everyone. This is my first post here. I came across a 1989 quarter that appears to be a weak strike. The Obverse side is missing most of the detail on the queen. Also, the edge is missing the reeding. In some places there are some faint hints of reeding, but mostly not there. Is this anything or ...