The picture shows a view of this Old Enameled National HotRod Association Pin. The year this pin was made or used is unknown. It is enameled in red and blue. It has an image of a car and a race car. It is marked as follows:
NATIONAL HOTROD ASSOCIATION DEDICATED TO SAFETY
The pin measures 1-1/4'' x 5/8''. It is in very good condition as pictured.