Beautiful vintage cultured pearl & sterling 45" long 6mm necklace

This auction is for a beautiful vintage cultured pearl and sterling long necklace. It measures 45" . The cultured pearls measure 6mm and are a cream color. They are all linked together with sterling that's twisted so they are secure and then the necklace is accented with three decorative circles. It has a S shaped clasp. It is not marked anywhere that I can see for the silver so I tested it and it does test sterling. Excellent condition. It could be wrapped around twice because it is so long. Thanks for looking.