![Psychograph, 1931](https://www.bygonely.com/wp-content/uploads/2019/09/crazy_useless_inventions_16.jpg)
A machine to measure the shape of your head. The machine consisted of 1,954 parts in a metal carrier with a continuous motor-driven belt inside a walnut cabinet containing statements about 32 mental faculties. These faculties were each rated 1 through 5, “deficient” to “very superior,” so that there were 160 possible statements but an almost unlimited number of possible combinations.