Here's a beautiful cobalt blue glass insulator (left) beside a peacock blue (right) spool to demonstrate the rich color! This beauty has two small rim flakes and 7 teeny fleabite dings. The pinhole has one flake and typical roughness on one side and mint on the reverse side. Much tougher to find than the peacock blue (sold).

Buy the cobalt blue now for only $60 plus actual postage. Book value shows $175-200. Thanks!