229 - PHOTOGRAPHY. Robert DEMACHY (1859-1936),... - Lot 229 - Vermot et Associés

Lot 229
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229 - PHOTOGRAPHY. Robert DEMACHY (1859-1936),... - Lot 229 - Vermot et Associés
229 - PHOTOGRAPHY. Robert DEMACHY (1859-1936), banker and amateur photographer, theorist of photography, he will become the leader of the pictorialist movement. Autograph letter signed to the historian of photography Georges Potonniée, March 8, 1925, 2 p in-8: "I have almost finished the dusty research that I do with dedication for the good cause! And I have found, in addition to the specimens of the requested processes, successful examples of the ozotype process - a process based on the insolubilization by contact of gelatin - the Manly process - and examples of the first tests of transfer on lithographic stone that I made about twenty years ago as well as those obtained in 1914 in collaboration with Santeul. Would you be interested in having them for the centenary?"
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