The Photographer's Friend,
Richard Walsl (Baltimore, MD), 7th edition, 1882
(complete)
On pages 51 and 52 will be found the simplest description of early American Optical models - merely referred to by letter or number with no ambiguous or confusing model names: A, B, C = Ne Plus Ultra (A-EEE); 201-204 = The 76 Camera/Outfits; and 1-8 = Dry Plate Outfits (1-8). On page 46 is a rare ad for the Semmendinger Excelsior.
