In the early 20th century, Leap Year postcards showcased outdated gender stereotypes. One comic series, for instance, depicted women using various tools to capture men, who were shown as easily swayed by food, drinks, or money. These 1908 postcards all include the Leap Year lemon symbol, likely stemming from the trend of giving someone a lemon as a way to dismiss them, known as “skidoo” or “23 skidoo” at the time.

h/t: vintag.es