The Humor category contains all the postcards intended to make the viewer laugh. This categorization of course relies on a certain amount of assumption, because most do not have any explicit reference to being humorous. The “jokes” of the postcards can include children posed with chamber pots, giraffes with their necks twisted together, an injured hunter and several tropes involving clowns. The humor cards offer the viewer a rare and somewhat incomprehensible glimpse into the humor of the early 20th century.