Vintage Sterling Silver (acid tested) Spinner Fob Pendant Necklace. A spinner fob with onyx, chalcedony, carnelian, and MOP (mother-of-Pearl). This old spinner fob is huge and a wonderfully wearable necklace with the multi-colors of brown, black white, and green. Spins freely and is wearable with almost any color. The bale and fob frame is substantial and possibly handmade. The stones are in great condition and bezel set. The approximate measurements are pendant 1 1/2 inches long by 1 inch wide, chain 20 inches long. I date the spinner to the early 20th century. The chain is newer but it is sterling and usable with other pendants you may own. A great vintage item to add to any collection.