Heavy Sterling Silver Graduated Bead Ball Necklace 30 Inches

Impressive sterling silver graduated ball necklace is unmarked and has been tested as sterling. The beads measure from 6mm to three 14mm balls at the bottom. There are two dented balls, curiously, they are the seventh ball on either side from the center ball. I'm guessing someone leaned against a table while wearing the necklace?? Photo 6 shows the two balls with the dents side by side. Both balls have two dents...one on the front and one on the back of the ball. The beads are strung on wire of unknown metal, but it is not magnetic. The necklace measures 30 inches in length and it weighs 67 grams.