Christmas Card Showing Santa Claus and Reindeer on a Carousel, circa 1955

Mailing colorful, commercially designed greeting cards was a 20th-century American tradition. During the holidays, friends and neighbors commonly exchanged cards wishing the recipient a merry Christmas. Santa Claus, a regular feature, is sometimes depicted non-traditionally in scenes that reflect the time. The carousel in this circa 1955 example -- a common attraction at postwar-era kiddie parks -- represents the youthful delight of the season.