Richard Knötel, Print of English Life Guards (left) and Horse Guards (right) of 1815 charging (Band IV, Tafel 4, Uniformenkunde, Lose Blätter zur Geschichte der Entwicklung der militärischen Tracht, Berlin, 1890). This image is in the public domain in the United States because its copyright has expired. Courtesy of Wikipedia Commons: http://en.wikipedia.org/wiki/File:Kn%C3%B6tel_IV,_04.jpg