Metal case containing an eye color chart and 20 artifical eyes used to verify racial identity

Metal case containing an eye chart [Augenfarben-Tafel] with twenty glass eye balls of various colors. The chart was used for racial experiments and research to promote Nazi ideology and racial distinctions. Prepared by Rud. Martin and Bruno K. Schultz. It was produced by Lehmann Publishers in Munich. J.F. Lehmann was a publishing house noted for printing materials on eugenics. Originally in the holdings of the Kaiser Wilhelm Institute in Berlin. Transferred to the Institute for Human Genetics at the University of Muenster in 1952 by founding director and former Wilhelm Institute director, Dr. Otmar Von Verschuer.