Original Technical Papers and Primary Sources
English Patents 3,729, 1903 ; 7,179, 1904; 27,419, 1904. F.P. 342 445.
British Journal of Photography, 1907, 54, Col. Phot. Supp. 1, 88.
Cleveland, David; Pritchard, Brian (2015): How Films were Made and Shown. Some Aspects of the Technical Side of Motion Picture Film 1895-2015. Manningtree, Essex: David Cleveland, on pp. 201–202.
Hopwood, Henry Vaux (1915): Color cinematography. In: Henry Vaux Hopwood: Hopwood’s living pictures. Their history, photoproduction, and practical working. With classified lists of British patents and bibliography. London: The Hatton Press, new ed., rev. and enl. by R.B. Foster, pp. 253–273, on pp. 270–272.
Klein, Adrian Bernhard = Cornwell-Clyne (1940): Colour Cinematography. Boston: American Photographic Pub. Co.. 2nd revised edition, pp. 8.
Wall, E.J. (1925): The History of Three-color Photography. Boston: American Photographic Pub. Co., p. 588.
E.P. 27,419, 1904
F.P. 342 445