A photograph from Edward Weston's iconic Shells series has sold for $905,000 at Sotheby's New York, an increase of 81% on an estimate of $500,000.
The print dates to 1927 and is numbered 18 of an edition of 50.
Weston's photographs are among the most celebrated artworks ever produced in the medium and have proven influential on generations of artists.
He wrote in his journal at the time: "I am not blind to the sensuous quality in shells, with which they combine the deepest spiritual significance."
The auction record for a work by Weston (1886-1958) is $1.6m, set for a nude at Sotheby's New York in 2008.
A photograph of the actress Gloria Swanson (1899-1983) by Edward Steichen (1879-1973) made $629,000 - up 25.8% on a $500,000 estimate.
The iconic image appeared in Vanity Fair in 1928, at the height of Swanson's career. She was hugely popular during the silent era but her career began to ebb after the studios transitioned to "talkies".
Her most famous role was as a washed up silent film star in Billy Wilder's Sunset Boulevard (1950).
Steichen was an artist and photographer who worked for Conde Nast and Vogue during the 1920s and 1930s, when he was the highest paid photographer in the world.
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