160 x 90 mm. (6 x 3¾ in.), edges very slightly worn, one light line across image. A black and white portrait of the Russian physiologist, signed on the lower portion of picture." /> PAVLOV, IVAN, <I>Scientist</I>. Photograph signed ("I. Pavlov") by Julien Bryant, n.p., n.d. <I>160 x 90 mm. (6 x 3¾ in.), edges very slightly worn, one light line across image</I>. A black and white portrait of the Russian physiologist, signed on the lower portion of picture. | Christie's