1.75” with 1969 syndicate copyright on the curl along with name of Charles Schulz and name of issuer “Simon Simple.” Button is one of the scarcest and best designs in the series picturing Peanuts characters. Snoopy is depicted on cratered moon surface with stars in the heavens above. He wears space helmet and his cartoon thought balloon states “I’m On The Moon!” A superb example and essentially Mint. Our 3 or 4 others typically sold at $200 or better.