I think this is a delamination but would like opinions from others.
Where the metal is missing has a grainy appearance.
[attachment=641]
[attachment=642]
Thanks,
Jeff
Is there weakness on the obverse at that spot? Looks like a peel not PMD.
Me thinks its been chewed out by rough handling.......as if it has been scraped with a screw driver or something.
I can't see anything opposite on obverse -looks quite normal.
And no tool/scrape marks that I can see.
Jeff