Brown Bobby

A Brown Bobby is a triangular doughnut. It is baked in a Brown Bobby machine, which resembles and is operated similarly to a waffle iron. These machines were created by the Food Display Machine Corporation in Chicago, Illinois, U.S., around the 1920s and possibly later. The Food Display Machine Corporation was located at 500 North Dearborn Street in Chicago. Its president was H. Adams. In the mid-1920s, through advertisements in Popular Mechanics magazine and perhaps other means as well, these machines were marketed as a way to start a small business. The machine’s manual has 3 parts: The seven business plans described are:

Source: Wikipedia