This copyright free image is from the ublic domain book, The Practical Guide to Health by Frederick M. Rossiter, copyright 1910, Pacific Press Publishing Association, Mountain View, Cal.This is Fig. 7 "Side view of the skull" from page 25.Flickr data on 2011-08-17:Tags: vintage, book, medical, image, illustration, drawing, public domain, copyright freeLicense: CC BY 2.0User: perpetualplum Sue Clark
Original public domain image from Wikimedia Commons