Alfred Stieglitz's Georgia O'Keeffe: A Portrait - Torso is to lead Sotheby's October 2 bi-annual auction of Photographs in New York.
 Stieglitz was O'Keeffe's husband, and he photographed her obsessively |
The intimate photograph is one of only three prints known, and is the only one of those remaining in private hands. Available to view in a pre-sale exhibition that opens on September 28, the print is expected to sell for between $300,000 and $500,000.
Several iconic American photographs feature in the sale, with landscape photographer Ansel Adams represented by a group of five mural-sized images. The group is led by the awe-inspiring The Tetons and Snake River, which measures a huge 51½ inches by 39½ inches, and is expected to sell for $250,000-350,000.
 Adams developed the Zone System to determine the proper exposure and adjust the contrast of his prints, resulting in clarity and depth |
Adams' Winter Sunrise will follow at $150,000-250,000.
Among European entries are three experimental works by abstract photographer Laslo Moholy-Nagy. A print of a Photogram from the 1929 Giedion portfolio is expected to sell for $20,000-300,000, while a print of one of his Hand Photograms, which also originates from the 1920s, holds an identical valuation.
Further highlights include a selection of artist's portfolios, which is headlined by Richard Avedon's Avedon/Paris, a seminal work from 1978 containing 11 of Avedon's signature fashion images. It is valued at $225,000-275,000.
More portfolios on offer include Ansel Adams' Portfolio VII ($80,000-120,000) and the 1993 self-titled portfolio by Ruth Bernhard, which comprises 10 platinum palladium prints of her most famous nudes.
Paul Fraser Collectibles is currently offering a signed copy of Yousef Karsh's Karsh: A Fifty-Year Retrospective - a perfect addition to your collection.
