|Owner:||Science Museum of Minnesota|
|Country of Origin:||United States of America|
|Tags:||Medicine and Quackery|
|Jigsaw Puzzle||Click Here to Play|
This device was created by Minneapolis resident Henry Lavery. It was used to determine people's personality traits and talents based on the contours of their head. Whereas manual phrenological examinations could take an hour or more, this machine did the same task in minutes.