RUSSIE, Début du XXème siècle Oval brooch centered on a micro-mosaic plaque, on a blue background, depicting St. Peter's Square in Rome, in a yellow gold (56 zolotniki / 583 / 585) setting with braided thread and ribbon chased with a frieze of posts. Yellow gold pin (585). MOSCOW, 1908-1926. Repunched in POLAND, Warsaw [W] between 1950 and 1963, under the titling of 375/1000, and chance punch [head of Owl] said "of the Lombard". Repunched in FRANCE with the scallop. Gross weight : 15.6 g - 4.2 x 5 cm. Crack in the right edge and chip in the left edge of the micromosaic. Possible restoration on the reverse of the micromosaic, hidden by a varnish.