Novelty Risque Joke Cards, the type frequently advertised in the back pages of magazines from the 1930s to the 1960s, and frequently with the phrase "The Kind Men Like" so you could infer they would have boob or butt jokes. They do. These are advertising handouts as well...the reverse has the name of a tavern in Oregon. Each 2.5" x 3.5" and from a set of ten.
Books and Ebooks by Jim Linderman are HERE