Four important silver sheet sculptures

Bartolomeo Boroni goldsmith, embossed and chiseled to depict the Immaculate Madonna, Sant 'Anna and two apostles, resting on oval bases centered by cartouche with a Lapis lazuli cabochon set inside, h. from 29 to 34 cm. Bibliography: Costantino Bulgari - Argentieri, gemmari e orafi d'italia - Lorenzo del turco Roma, parte prima, pag 197 marchio n° 304 , peso 2305 gr.