The polish line is a DelGrego indicator. I know of no way to tell between the three DelGrego generations.
Jared, I wonder why you are not a PGCA member? I see you have been a forum member for a couple years and have many posts here, as well as being an interested Parker collector. Do we do something that makes you not want to join our association? If its simply because no one has invited you, please consider this an invitation.
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