what causes one JFK to be 1/2 as thick as another JFK? Added photo

Was just going through a tube of some JFK's, and noticed one is really thin compared to the others, more like the thickness of a quarter. Diameter is the same as the other JFK's. Just curious.
Tom
edit to add pic
Tom
edit to add pic
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peacockcoins
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since 8/1/6
<< <i>Maybe it's a Hickman? >>
No way. His have a shrunken diameter and thickened depth.
Hmmm.. It looks interesting. I don't know what to make of it
My posts viewed
since 8/1/6
Tom