[CR]unusual simplex derailleur on ebay

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From: <Bikerdaver@aol.com>
Date: Mon, 1 Nov 2004 23:27:02 EST
To: PaulieFlt@aol.com, jerrymoos@sbcglobal.net, classicrendezvous@bikelist.org
Subject: [CR]unusual simplex derailleur on ebay

I recall some recent eye opening discussions about Simplex derailleurs, but I have never ever seen this type of one before. Can one of youz more edumacated folks tell me what it is?

http://ebay.com/<blah> d=1

It sure is different from other simplex derailleurs I have seen, any idea of
the vintage?
cheers-
Dave Anderson
Cut Bank MT