1940's "I AM A SPY SMASHER" Pinback Button from Fawcett Comics Original issued by the Captain Marvel Club

Spy Smasher is the name of a superhero comic book character in the 1940's published by Fawcett Comics.

This pin is a original authentic button from the 1940's, it was from my great grandmother's collection

In good vintage shape with some surface wear, see photos please.  Fun piece of history for you comic book fans!