[PHOTOGRAPHIE] Portrait photographique de Gustave Courbet à la canne

Photographic portrait of Gustave Courbet “à la canne”
Original photograph on albumin paper, in a visiting-card format, laid down on card from the studio of Pierre Petit in Paris.
Manuscript annotations to verso.
Portraits of Courbet by Pierre Petit are very rare, the painter having been mostly photographed by Carjat, a pupil of Petit's.
We have been able to find only two copies of this photograph in the United States: one at the Detroit Institute of Arts Museum, the other at the Fine Art Museum of San Francisco.