A. Calavas published “Studies for the Use of Artists” (or "Album d'Etudes et Poses`")around 1880. Calavas was the editor, not the photographer. The photograph shown above is for sale on Ebay.
More photos by A. Calavas at Past to Present.
Another image of a male model at Artnet.
3 more at Galleria de Desnudos
From Luminous Lint