This commemorative convention cover was issued for the Lions District 1-A Convention held at the Marriott Hotel in Chicago, Illinois, on April 24–25, 1971. It coincided with the District 1-A First Lion Stamp Exhibition, celebrating philatelic interest within the Lions Club community. The cachet, printed in burgundy, displays an artistic arrangement of Lions Club-themed cinderella stamps and labels. Affixed are two 6¢ Flag and White House definitive stamps (Scott #1338B), canceled with a Chicago, Illinois machine postmark dated April 24, 1971. Such covers combine Lions Club history with U.S. philately, making them attractive to collectors of both organizational memorabilia and postal history.