Erm…I would say not since it says 1993 trade show photo.Wow that’s a mk 1 Joes derailleur. Is it yours Tom? I wasn’t sure if it was ever actually released or was just a prototype…
I have the next edition with the later dropped-parallelogram body; it has a similar curved cage to the one above only much longer and with a very intricate rear cage design. Never seen another one.
There are at least 5 iterations of Joes mech!