This incredible brooch is unsigned as far as we can tell, but is got a smooth shiny goldplated finish on the back which you typucally see in Trifiari, Derosa, and Dujay of this period. Many pictures attached so that you can examine the condition. If you love vintage jewelry, please view and follow our store as we are listing many new items every week from vintage jewelry, art, ceramics and glass, and videos games.