Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country. Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Charles_R_Savage_Phrenogram_by_Nephi_Schofield.PNG
Phrenograph of Charles Roscoe Savage performed by Nephi Schofield in 1904. Published in the phrenological journal, the Character Builder.<ref>Nephi Schofield, "Charles R. Savage: A Phrenograph from a Personal Examination", The Character Builder, 1904, page 72. complete phrenograph found online at: https://archive.org/details/builder1904/page/72/mode/2up</ref>