Jules SOHN (Sculptor of the XIXth Century, installed Passage de l'Opéra in Paris) : " Two figurines of royal characters on their base ". Stearic plaster. Accidents. H. : 12,5 cm and 11,5 cm. On the back, wax stamp of Jules Sohn, inventor in 1839 of the process of Plastic Composition (patent of Louis-Philippe where appear the King's Arms). At the 1844 Exhibition of Industrial Products, he received an honorable mention for the invention of his plaster sculptures soaked in stearin baths. Jules Sohn will notably realize sculptures in stearic plaster in collaboration with Dantan.