Dumas worked as an assistant in the studio of the Hungarian photographer Ergy Landau before opening the studio Dumas-Satigny. Landau and Dumas continued working together with Hungarian photographer Ylla [born Kamilla Koffler] who posed as a model for both photographers, as in this image.
Nora Dumas born Kelenföldi Telkes Nóra · Étude du nu |Nude Study, early 1930s. In ‘28 Etudes de Nus’, Paris, Arts et Métiers Graphiques, 1936. | image source LiveAuctioneers. This photograph is credited in other sources as Ergy Landau’s and titled a nude study of Nora Dumas as here or simply credited as Ergy Landau’s as here. | image src LiveAuctioneers.
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