Here you have a wonderful bit of VINTAGE MEMORABILIA! Please...SEE THE SCAN!!! This is an original ca 1974 PINBACK BUTTON celebrating the National Championship of PAY-PAK U-1 in Hydroplane Racing for 1973-1974. This measures 3 inches in diameter. This is in EXCELLENT CONDITION! There is a touch of rust on the rim in back and tarnish around the back of the button. The front is in gorgeous shape. This is a tough find! This is a great piece FOR THE COLLECTOR! Take it home with you! GOOD LUCK! Please Check Out My Ebay Store for more great memorabilia!!! I am happy to send this to any country. 1st class air postage will be charged… More excellent packaging and free 1st class shipping here in the United States! THANKS! 092814