File:Psychograph demonstration model.jpg

Title: [Woman seated with a psychograph, a phrenology machine, on her head] Creator(s): Harris & Ewing, photographer Date Created/Published: 1931 Medium: 1 negative : glass ; 4 x 5 in. or smaller Reproduction Number: LC-DIG-hec-36580 (digital file from original negative) Rights Advisory: No known restrictions on publication. Call Number: LC-H2- B-4880 [P&P] Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print Source: http://www.loc.gov/pictures/item/hec2013006616/