[STANLEY (Sir Henry Morton, 1841-1904, Explorer who found Livingstone)]

Fine woodburytype photo by Walery, showing him, three quarter length, wearing a twede suit with his hands in his pocket, with facsimile signature, accompanied by a printed biography, 16½" x 12", no place, May 6th, library stamp in top left hand corner

The term Woodburytype refers to both a photomechanical process and the print produced by this process. The process produces continuous tone images in slight relief. A chromated gelatin film is exposed under a photographic negative, which hardens in proportion to the amount of light. Then it is developed in hot water to remove all the unexposed gelatin and dried. This relief is pressed into a sheet of lead in a press with 5000 psi. This is an intaglio plate. It is used as a mold and is filled with pigmented gelatin. The gelatin layer is then pressed onto a paper support. It is thought to produce the finest photographic images.
The Woodburytype was developed by Walter B. Woodbury in 1864, first used in a publication in 1866 and widely used for fine book illustration from about 1870 to 1900.

Item Date:  1890

Stock No:  25678      £375

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