Note the 2 looks like it's hand written and the tail slopes up. Is this a transition style [060] or the more common [050]? Come on you experts can you help me out in learning about these "real " insulators. Would like to find out which specific embossings are the oldest in the CD 160's? ANSWER This is the [050] and is the script style mold made after the Transition style. Oldest mold is Transition, Script, Prism, and Stamped is newest.