This form of incuse doubling is fairly common on copper-plated zinc cents and can also occasionally be found on 1943 steel cents. I've never quite understood it. It's more exaggerated in later die states, especially where there are "ridge rings" (die deformation) just inside the rim. So I suspect it has something to do with die deterioration.
Hi Mike I have seen the incuse lines around dates before, but not so many with the multiple images, under good magnification, there are at least three seperate images for the 989 ,also noted is the weak D which is a good aurguement for your explanation. Thanks Rick
Hi All, I see this for some reason on coins that are struck on planchets that are thicker than normal. I'm not sure of the mechanics behind it. Have Fun, Bill