Spectacular Dangling Huge Pin Brooch Signed

Truly spectacular work of art intricate and truly unique 2.25” Wide X 3.75” Long. Don't know who AV is, I looked it up and there are many different guesses including Adrienne Vittadini, and this A.V © is also sometimes used as a hallmark on jewelry from Avellino, Italy. So I honestly don't know, I do know it's not some cheap costume piece it really is exquisite! AV A Real Showstopper No Trades (S077)