I posted on this "mystery" derailleur I have, and have not had a lot of response. I've uploaded photos of the thing, which is rather Zeus like in some aspects, to http://membres.lycos.fr/partspeekers/
As usual, you have to click on the bottommost link on the left of the page as I'm too dumb to work out the page url's, but then again it's a free hosting with all java-rot instead of good, clean html (I know, off-topic, sorry). The cage is pretty lousy looking in my opinion, but the alloy frame is pretty.
Nick Bordo, Agen 47000, Aquitaine, France
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