Group of nine, each 7/8" and probably a full set. We've seen similar as magnets for use on a metal chalk board but these were actually pinbacks. Bottom curl of each has copyright symbol and "United Feature Syndicate, Inc." While the art on these and the magnets we referenced are definitely 1950s, these are somewhat fresher looking although we've not seen any others. These came from a collection largely assembled in the 1970s. Depicted are Charlie Brown, Snoopy, Schroeder, Linus, Pig-Pen, Lucy, Shermy, Violet and Patty. Rare and in essentially Mint condition.