No need to upgrade cobalt blue no name No 19 Only a 1/2" X 1/8" flake/scrape area at the base of the threading and a pin tip nick underneath the upper wire ridge. . Has a cool little milky swirl above the upper wire ridge. Is in the front up above the No 19. Looks to be about 1 1/8" x 1/2. A 1/2" x 1/8" long bubble on the rear crown. I would say it wouldn't be necessary to upgrade unless you want mint. Asking $325.00 shipped and insured. 1st email as usual and all forms of payment accepted. Thank you for looking.