This book remains one of the few so far discovered to have been produced by the Actinic Company using Moss’s method. These are some of the earliest photo-engravings done in the United States. Moss Process… Profusely illustrated with engravings from photographs taken on the spot.
Moss Process… First a piece of artwork was copied photographically. A large photographic print was then made over which an artist would draw a line copy in India ink. The photographic image would then be bleached out and from the resulting line art a reduced high-contrast photographic copy would be made to produce the printing plate. Hanson Collection catalog, p. 43
David A. Hanson Collection of the History of Photomechanical Reproduction