TThe picture shows a view of this Old HowdyDoody For President Advertising Political Tin Tab Button. The button is not dated but is believed to be from the 1970s. It may have been from a Howdy Beef n' Burger Restaurant. It has a nice image of HowdyDoody and it is marked as follows:
HOWDYDOODY FOR PRESIDENT HOWDY! COPYRIGHT NBC
The button measures 1-1/2'' wide. The tab has never been bent and it appears to be in near mint to mint condition as pictured.