I wanted to thank the list for the outpouring of responses. I'm amazed at the number of Vitus frames out there (one of you has 5 or more!)
Doug Brooks has provided the answer. But many of you provided information and leads I never would have gotten anywhere else.
Classic content: Several responses spoke of turning down a 26+ mm pin. I trust this is turning down a forged pin as opposed to turning an extruded tube, a'la most modern lightweight seat posts.
Thanks to all who responded. This is a great list!
Thanks Dale, for hosting such a great group of people!
Sid Smith
Lake Forest, IL