Yunchaoxuan S990 Sterling Silver Vintage Antique-style Rotating Bead Abacus Coin Openwork Pendant Necklace. This exquisite piece features a unique rotating abacus bead design with an antique finish, crafted from pure S990 sterling silver. The intricate openwork coin pendant adds a touch of classic elegance, making it a perfect bohemian accessory for layering. Ideal for adding a retro and sophisticated flair to any sweater, dress, or casual outfit. A timeless, versatile statement necklace for fashion enthusiasts.