Glossy 5-3/8x7" single-sided sheet features designs for 12 membership buttons for the Supermen Of America club. Several versions of this design were made for the club from 1940 through 1961. Sheet features 1950s version w/Nat'l Comics Pub., Inc. copyright, but no date. These were to be stamped out and covered by cello to the metal button back. Sheet shows some scattered handling wear w/some creases and stray red/yellow ink marks as printed. VF overall. Few uncut sheets for any of these Superman buttons are known to exist. A rare and interesting Superman item from one of the most popular comic clubs of all time. Danny Fuchs Collection.