Vintage Designer Signed Marvella Faux Pearl Necklace

I have a stunning beautiful designer signed vintage Marvella Faux Pearl Necklace. I believe it is from around the 1970s. It is stamped with a pat. # on the clasp but I am not able to make it out. Would make a beautiful something old item for a brides big day! Or would compliment a Vintage Wedding Dress any bride would be happy to wear this timeless lovely piece to add a lil beauty to her bridal attire but not too much to take away from her dress. This vintage necklace would also be a beautiful classy touch for any formal occasion or any event where you want to add a little something to make your outfit "pop". I leave all cleaning up to the buyer.