[CR]Eisentraut dating...a little help?

(Example: Books:Ron Kitching)

From: Tom Sanders <tsan7759142@comcast.net>
To: <classicrendezvous@bikelist.org>
Date: Tue, 28 Sep 2004 16:55:54 -0400
Subject: [CR]Eisentraut dating...a little help?

I just bought a basement full of cool bike stuff. In with all this was a killer Paramount track bike and a small Eisentraut without any decals (I have been told that Miji Reoch raced a similar one without decals) that was custom built for a racer named Barb Hinson (SP?). It has wheels supposedly built by one Gene Portuesi (again SP?) who was possibly an Olympic cycling coach and owner of a business called Cyclopedia. None of this rings any bells at all for me. Perhaps it might for some of the old timers on the list? I have no reason to doubt the old gentleman I bought the stuff from. The bike has a serial # of 040679. I am guessing this places it in '79? Might there be a time line someone knows about of Eisentraut serial numbers? Any help sure would be appreciated.
Thanks,
Tom Sanders
Lansing, Mi