March 25 (Bloomberg) -- A nude photograph of France's first lady, Carla Bruni-Sarkozy, taken 15 years before the former Italian model married President Nicolas Sarkozy, will be auctioned by Christie's International in New York on April 10.

The gelatin silver print taken in 1993 by photographer Michel Comte is going under the hammer alongside other photos from the collection of Gert Elfering, according to Christie's Web site.

The auction house estimate for the photo is $3,000 to $4,000.

Sarkozy married the singer and former model Carla Bruni in February after divorcing his second wife, Cecilia, in October.

To contact the reporter on this story: Francois de Beaupuy in Paris at fdebeaupuy@bloomberg.net.

Last Updated: March 25, 2008 06:28 EDT