It looks like a linear plating bubble that just happens to look like an extra upright for the 9. If you take a wooden toothpick and press on it you may find it to be flexible. It's not doubling or a strike error. It's common on copper plated zinc coins.
ANA ID: 3203813 - CONECA ID: N-5637 Clean a coin that may be worth collecting? Please DON'T! When in doubt, leave it dirty!!



























