[Phototype illustrations in Wilson's photographics]

Wilson, Edward L. (Edward Livingston), 1838-1903. Wilson's photographics : a series of lessons, accompanied by notes, on all the processes which are needful in the art of photography · 1881

"2 Phototype illustrations, by F. Gutekunst, Philadelphia, a portrait of Wilson and a composite of portraits of Adelaide Detchon. The same portrait of Wilson was used for the Ives process half-tone in 1881. The text acknowledges that Gutekunst uses the Husnik patent for phototypes."--Hanson Collection catalog, p. 73