Photograph of a cougar's head in center of the button, with bold text at top and bottom. Two-toned background with beige upper portion and brown lower portion. The top, beige portion has bold, brown text stating "I met Chauncey" above the lion's head. The bottom, brown portion has the words Van Dahm Lincoln Mercury Oak Lawn.
Van Dahm Lincoln Mercury is a car dealership in Oak Lawn, Illinois.
From the Suburbanite Economist on July 31, 1974:
"A television celebrity with a flair for a snarl will appear Aug. 3 at Van Dahm Lincoln Mercury Inc . 10201 S. Cicero Ave, Oak Lawn. Chauncey the H-year-old cougar star of Lincoln- Mercury division's Cougar XR 7 and Sign-of-the-Cat commercials, and Christopher -- the two-month-old cougar cub featured in Mercury Comet commercials. The cougars are two of 150 wild animals orphans who live at Ted and Pat Derb's Love is an Animal, a 300-acre farm near Buellton, California"
The advertisements featured a cougar on top of the Mercury Lincoln sign. Here are some example commercials featuring the cougar:
1973 Lincoln Mercury TV commercial https://www.youtube.com/watch?v=L0w46M1xuDY
Mercury Capri 1979 Commercial https://www.youtube.com/watch?v=o--8zQO-Hy4&list=PL864197912ABAA78E&index=2