Photogalvanograph

An electro-engraving printing process invented in 1854 by Paul Pretsch, which was beginning of a new era in the history of photography and printing, that of photo-engraving, which saw the publication of photographs in printing ink. It followed on from hand engraving methods, being more accurate and cheaper. Preparation of the plate took about six weeks from which 400-500 copies could be taken using a printing press.

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Roger Fenton, by Hugh Welch Diamond, 1868 - NPG  - © National Portrait Gallery, London

Roger Fenton
by Hugh Welch Diamond
1868
NPG P226

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