Alexis Gaudin studio
1860
Interior of Stereographic Manufactory (atelier Alexis Gaudin et Frères, rue de la perle, 9 Paris)

Stereocard variants
Internet - Original source ill-defined
Emanuele Bennici (Facebook, Luminous-Lint page, 21 June 2016)
 
Emanuele Bennici (Facebook, Luminous-Lint page, 21 June 2016) wrote: "It's an 1860 photograph of atelier Alexis Gaudin et Frères, rue de la perle, 9 Paris. The man standing who oversees the work is precisely Alexis Gaudin. The photo is part of a set of four stereocards of the same subject."
 
For a description of this series - Mark Osterman "Rolling and Burnishing of Nineteenth-century Photographic Prints" IN Constance McCabe (ed), 2005, Coatings on Photographs: Materials, Techniques, and Conservation, (Washington, D.C.: Photographic Materials Group of the American Institute for Conservation of Historic and Artistic Works)
 
LL/67684