Vintage MAJORICA PEARL necklace in original box with signed certificate

This is a lovely genuine Majorica pearl necklace that I bought in Barcelona more than 30 years ago. It is 20 inches long and in excellent vintage condition. I believe the clasp is gold vermeil on sterling silver. Signed certificate of authenticity included. Original box also included, but it is a little wobbly on closure. A gorgeous set of pearls with beautiful heft and luster.