Cartoon of Dr. Howard B. Hamilton self-proclaiming his victory in the tennis tournament.

Cartoon of Dr. Howard B. Hamilton with tennis racket in hand, excited because the work week is over.

Cartoon of Dr. Howard B. Hamilton flooding a tennis court with his own sweat. The caption at the bottom reads "Isni Kai Match."

Cartoon of Dr. Howard B. Hamilton smacking a tennis ball so hard his bowtie flew off.

Cartoon of Dr. Awa playing tennis as a 'famous tennis player in Hiroshima.'

Cartoon of Dr. Howard B. Hamilton giving a lecture at a seminar with his collegues. One of the researchers already has his tennis racket in hand to play after the meeting.

Cartoon of Dr. Howard B. Hamilton waiting patiently as a dog and puppies cross the street using a crosswalk.

Cartoon of Dr. Awa because of the lack of a bow tie. The employees created and participated in tennis matches. Dr.Awa appears to be taking a magic tennis racket ride possibly insuating he has magical tennis skills.

Cartoon of Dr. Howard Hamilton getting hit over the head with an unusually large tennis racket by a "devil" Dr. Akio Awa. When the characters in the cartoons are up to no good, they are usually depicted with horns and fangs. Dr. Akio Awa is clearly up to some mischief in this scene that is reminiscent of other famous cartoons such as "Tom and Jerry."