Dora Kallmus (known as Madame d'Ora) (1881-1963 )Alix Grès, c. 1935. vintage silver print, mounted on card. Signature in the negative in the lower right corner. Dry studio stamp on the mount lower right. 18.3 x 16.4 cmDora Kallmus (known as Madame d'Ora) (1881-1963) Alix Grès, c. 1935. Vintage gelatin silver print, mounted on cardboard. Signature in the negative in the lower right corner. Blind stamp of the studio on mount. 18,3 x 16,4 cm