1962 Press Photo Duke, chimpanzee, and his trainer Mike Kostial at St. Louis Zoo

Duke, star of the 1962 chimpanzee show at the St. Louis Zoo, contemplates the floor from mid-air after sailing off the end of a ski jump on roller skates. Trainer Mike Kostial shouts encouragement.

Photo is dated 1962.

Photo measures 9 x 7 inches.