This is a mid-20th-century advertising mirror featuring an integrated thermometer, produced as a promotional item for Frank J. Bauer Milk Transportation of Campbellsport, Wisconsin. The piece features an Art Deco-inspired design with a printed panel at the top containing the business name, specialty, and a vintage alphanumeric telephone number (98 F1). The central portion of the mirror displays a colorful lithographic illustration of a woman in a pale yellow dress seated and speaking into a green rotary telephone. A green lightning bolt graphic is positioned to the right of the central figure. To the left is an inset vertical thermometer with a glass tube and a scale ranging from 20 to 120 degrees Fahrenheit, including notations for Freezing and Blood Heat. The item is housed in a simple black-painted metal frame with a small hanging loop at the top center. The lower right corner of the illustration contains a signature in the plate that begins with the name Charles.