Vintage interlocking faux pearl collar necklace

Beautiful vintage necklace measuring about 18 3/8" long from end to end, including the foldover clasp. The necklace is comprised of goldtone interlocking settings that are slightly flexible, & each setting has a round, shiny white faux pearl in the center. The design reminds me of an infinity symbol. There's very little wear, this necklace is in excellent condition! The clasp clicks closed loosely--could be replaced or maybe squeezed tighter so it clicks more confidently.