John Hardy circa 2000 Silver Dot Double Coil Ring, Dot Collection size 7 From John Hardy's most sought-after vintage collection, the Dot Collection. The double coil ring is cast in sterling silver. Ring measures 16.5mm in width. Excellent condition, clean and ready to wear Dot’s intricate texture is inspired by the ancient Balinese jawan technique, in which rondels of sterling silver were applied by hand to achieve an intricate, granular finish. Master casts from the original Dot collection were used to create this eight-piece reissue.