Éditions OSTRA. Jacques (1887-1942) & Charles BIEDERER (1892-1942). Les Deux amis, circa 1930. 9 vintage silver prints, 17 x 12 cm, including 2 duplicates. Bibliography: Alexandre Dupouy, Les éditions Ostra, L'Âge d'or du fétichisme, éditions Astarté, 2007. Joint: [Unidentified photographers]. Nude study, circa 1930. Vintage silver print, 26 x 17.5 cm. - Mise en scène, circa 1935. 15 period silver prints, half-stereo, 6 x 6.5 cm. Blank backs. (25 prints in all)

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