Consists primarily of calendars used as an advertising medium for various types of businesses. Also includes correspondence, bills, receipts, printed advertisements, articles, pamphlets, and books, as well as publications concerning calendar history and reform. Some foreign material is present. The bulk of the material dates from the late 19th century.
Calendars, Warshaw Collection of Business Americana, Archives Center, National Museum of American History, box #, folder ##, digital file ###