This is a commemorative pin from the 72nd Indianapolis 500 car race on May 25, 1988. It has a white background with old time cars and present day cars illustrated as well as the date of the race. The pin measures 2.05" across and down; has the number 203 written on the reverse. A yellow car with “18” in red (possibly Rck Mears?) appears. Made by Sports Service Inc. of Indianapolis IN.