Yousuf Karsh (1908-2002), Georgia O'Keefe, c. 1956. Gelatin Silver Print. 20 x 16 in., print. 27 x 31 in., framed. 50.8 x 40.64 cm., print. 68.58 x 78.74 cm., Framed. Signed. Estimate: from $10,000 to $12,000. A similar photo was sold for US $10,625 by...