Patent Dec. 19, 1871 CD 134[010] in an unlisted tweener color between powder blue and light cornflower blue. It has a small flake on the wire ridge on the side, a small open bubble on the base, and a flea bite on the wire ridge in the front. Seeking a California insulator from my want list [id=591894973] or a condition upgrade to a piece in my Cal collection Sold at Gettysburg National.