These images from the Chattanooga History Center were produced as training materials for new hires at Krystal restaurants, a fast-food franchise founded in Chattanooga, Tennessee in 1932.

With a menu centering around the bite-sized Krystal burger, the restaurant aimed to provide fast and courteous service to customers in a hurry.

Along with an orientational training film, these photos were shot as examples for employees of how and how not to present themselves behind the counter.