Original photograph of Adolphe Braun, one of the pioneers of photography and absolute pioneer in the photographic reproduction of works of art. Photograph paintings of J.J. Weertz" The Assassination of Marat" , obtained by the method old printing coal. This issue has significant curiosity in reverse, on the seal observed with the legend. J.B PARÉS c.PETRITXOL 3 Barcelona and corresponds to the original stamp of Joan Baptista Pares, collector and founder of the famous Sala Parés of Barcelona. Adds more curiosity to this piece, the fact that there is an identical piece to this, exhibited at the British Museum in London, registered in the museum with the number: 1898,0527.191 donated to the British Museum in 1898 by Francoise Chevremont, biographer Jean Paul Marat (Google / Assassinat Marat Adolphe Braun British Museum). Photography dated between 1870 and 1880. Contemporary J.J. Weertz, Francoise Chevremont, Adolphe Braun and Joan Baptista Pares. Format: 16,50x10,50cm. Extraordinary and very curious piece.