Archive Farms his photograph comes from a set of documents relating to the Ecole Centrale des Arts et Manufactures in Paris. This building now houses the Picasso Museum. The professor standing at the bottom right of the photo, is probably Mr. Auguste Perdonnet who taught steam engine mechanics and everything related to railroads. Mr. Perdonnet was appointed director of the Central School in 1862, and remained in that position until his death in 1867
