Vintage smithsonian pearl necklace with 4 rings the pearl measures 3 mm to 4.5 mm total of pearls about 503
14 1/2 inches 21 mm
I bought from antique jewelry seller
A Non-nucleated Cultured Pearl Choker Necklace, American
composed of 4 rows with pearl ranging from 3 -4.5 mm total of pearls totalling approximately 503 and measuring approximately 14 1/2 inches.