Psychograph

The psychograph was a phrenology machine, invented and marketed by Henry C. Lavery in the early part of the 20th century.

The psychograph claimed to mechanically discern a subject's aptitudes in a number of mental faculties.

Eventually he joined with Frank P. White to form the Psychograph Company, based in Minneapolis, Minnesota, which operated from 1929 to 1937.

The machines were sometimes installed in theater lobbies or department stores as novelty items for customers to use.

[2] In the late 1930s the psychograph was withdrawn from the market due to falling sales and increased skepticism from the public.