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Articles du British Journal of Photography sur les travaux de Rapahel Ed. Lisegang

Voir sur ce site l'article sur le Phototel de Raphael Eduard Liesegang

British journal of photography annual 1890, p. 607
BFP 1890.jpg
20 March 1891
"Transmission of images, seeing, and photographing by telegraph",
British Journal of Photography, 1891
10 April 1891

17 April 1891

17 April 1891
BJP April 17 1891a.jpg
BJP April 17 1891b.jpg
1st May 1891
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