Hello everyone and thank you - in advance - for your time! So I'll hop right to it, i have this 1989 Kennedy Half Dollar that has a star missing from the reverse side of the coin, just beneath the eagles tail feathers. Theres no indication of significant wear and tear and/or no obvious marks/scrapes on the coin, it looks clean - just missing a star. Its interesting I've never seen this and can't find anything about it.. ideas? Much appreciated!
The usual cause for something like this is that the missing device was filled with some grease or other debris that kept it from showing on the coin. Interesting, but not really worth any premium. Welcome to CT
Looking at the color difference of the area surrounding that missing star, I'd say it was grease/foreign object filling that one star in the die. Odd, but not totally unusual. I'd hang on to it as an anomaly.
More like a star that collapsed into a black hole @Graham S It's a filled die error, as others have said. I would probably save it if I found it, but it really doesn't have any extra value. However, I don't think you would get too many complaints if you decided to spend it (except from the cashier, maybe)