The first appearance of the bulldog that would become Marc Anthony in the following year's Feed The Kitty.
Claude's hobby is building a model boat in a bottle - except Claude is the one in the bottle.
Claude Cat breaks the fourth wall several times, once as a silent parody of Napoleon Bonaparte.
The cartoon map spoofs the popular quote from Hamlet, spoken by Marcellus in Act I, scene iv, about something being rotten in the state of Denmark.
The bulldog uses an Acme ten key adding machine just before he, too, breaks the fourth wall.