Dera All, My thanks go to all those that helped me to track down one of these rare derailleurs. I have now got one from a very kind member of this list that had one to spare.
I am currently building-up a NOS Manufrance Poulidor Competition frame from 1978 (I think). I will be decked with Simplex SLJ Gold derailleurs, Gold Mafac 2000 brakes and the usual Stronglight chainset. It is an interesting frame built from Vitus 971 tubing and has Shimano ends. Apart from a couple of scratches, it is pretty much in as-new condition.
Happy biking (Note: if you are in Toronto I hope that you have mudguards on your bike, as it is raining cats and dogs).
Peter Rogers
Barrie, Ontario, Canada