File:Keulemans grey fox.png

Summary
Engraving of a grey fox by J. G. Keulemans Date: 1890 Source: Dogs, jackals, wolves, and foxes: a monograph of the Canidae Author: Mivart, St. George Jackson, 1827-1900 - This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923. 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.