DEROCHE, Mathieu, (European, 19th C): Portrait of an elderly woman, Enamel/Copper, 3 1/4'' x 2 1/2'', encased in a dore bronze embossed and pierced frame which is stamped verso ''Mathieu Deroche Gold Medal 1878'', also written verso of the picture in script is the artist's name, address, Paris 1881.