Vintage JJ Comedy Tragedy Pewter Pin Pendant Magnetized Backing Signed "JJ" This has a magnetized backing that was added for easy application on & off your finer materials 2 1/2 x 1 1/2 inches The magnetic application is a strong one with a caution warning on it - new owner may want to remove it. I do not see a pewter marking, but these vintage JJ pins are usually pewter.