centrata da ovale in ametista entro riserva mistilinea in bronzo dorato e traforato, cornice antica in ebano; usure, graffi, rotture, modificheLa placca, cm 18,5X16,5La cornice, cm 27,5X25,5A PIETRA DURA AND JASPER PLAQUE, 18TH CENTURY; WEAR, SCRATCHES, DAMAGES AND REPLACEMENTS