This lot is closed for bidding. Bidding ended on 4/18/2024
[HELIOTYPE PHOTOGRAPHY]. [EDWARDS, Ernest (1837-1903), photographer]. [AGASSIZ, Louis (1807-1873), subject]. Early Heliotype Photographic Portrait of Louis Agassiz. [Boston?: James R. Osgood & Co., 1874]. Small oval portrait of Agassiz mounted onto a printed octavo sheet. Photo approximately 61 x 50 mm; sheet approximately 211 x 139 mm. Edgeworn, soiled, glue residue on verso, a small tear at upper right corner with an associated crease. With pencil notes on front: “L. Agassiz” and “Given at a lecture on Heliotype delivered at the rooms of the Boston Art Club, Boylston St. - Feb. 14th 1874.” Around 1867 British photographer Ernest Edwards invented the Heliotype modification to the collotype process. James R. Osgood owned the American patent for this process.