The picture shows a view of this Colorful Old Ken-L-Ration Dog Food Advertising Club Member Tin Pin Back Button. This pinback button is not dated but believed to be from the 1950s or 1960s. There is a Union mark on the back. The pin has a colorful comic dog image and it is marked as follows:
OFFICIAL MEMBER KIDS KEN-L KLUB
The button measures 2-15/16'' wide. It is in very good condition with some light scratches from use as pictured.