1858 Advert for the Scovill Manufacturing Company, No.4, Beckman Street, NY
Advert Google Books Published in "Treatise of photography on collodion" by Charles Walkdeck and Peter Neff, Jr, (Second edition, Cincinnati, Longley Brothers, 1858).
Note the mention of Photographic, Ambrotype, Daguerreotype processes and Melainotype Plates.
