This image is of the most iconic clown in America, Weary Willie as performed by the legendary Emmett Kelly.
The description states:
EMMETT KELLY AS “WEARY WILLIE”,
WORLD FAMOUS CLOWN.
Color Photo by H. W. Hannau
–The fame of this character is such that a museum has been built in his honor.
This card was used and is dated 25 January 1966.