Original albumen photograph mounted on card by Pierre Petit, showing Alexandre Dumas in medallion format, mustachioed at about 60 years of age. Deep blacks and fine contrast. Photograph mounted on heavy paper. Very fine condition. On verso, the author's name in manuscript and a stamp: Paris. Besançon. Pierre Petit. Photographe. 31 Place Cadet. Paris. It was in 1858 that Pierre Petit established his photographic studio at Place Cadet, and the following year he began his gallery of famous men of the era. The portrait of Alexandre Dumas certainly forms part of this series.