Rare Estate Brass / Bronze/ Gold-tone Hammered Necklace

There are no hallmarks which is unfortunate because this is a uniquely made necklace. Hammered metal but I do not know the composition. Well made matte finish. Possible brass or gold plated - it has not been tested. A nice weighty piece. Measures 18” with adjustor. Estate item. Designer MARCO BICEGO pieces are made in this style. 🦋Please note -last photo is a - Gurhan .990 Yellow Gold Long Puffed Domed Hammered Link Adjustable from 15" to 17.5" Chain Necklace w/ Lobster Claw Clasp