[CR]Which Juy derailleur do I have?

(Example: Framebuilders)

From: "Warren Young" <wyoung@stonehenge.ca>
To: "Classicrendezvous (E-mail)" <classicrendezvous@bikelist.org>
Date: Thu, 6 Sep 2001 12:02:36 -0400
Subject: [CR]Which Juy derailleur do I have?

I've been unable to find a Simplex database to answer this question. I've acquired a Simplex Juy derailleur that appears to have no number. It has only one pulley, a telescoping spring in a banded coil, a tension spring, a hanger and a chain that attaches to a cable.It reads Simplex, Juy Made in France. Conditon is good. Unfortunately I haven't followed the "Juy" discussions close enough to know what it is I have.(the Holy Grail?) I have pics if someone wants to see it.

TIA
Warren Young