Hello all - I was lucky enough to acquire a complete users manual for the round and oval Godins - both sizes. I also have a separate manual for the Bell Epoque.
They're both in English.
An on line parts source in France is: http://www.carre-lutz.com/acatalog/chauffage_1.html. Of course, it's in French. They have a lot of parts.
If anyone would like a copy of either (or both) manual, they can send me a donation, and I'll send a Xerox of it along to their address (provided by them).
There's quite a few pages of info and some pictures.
Regards - Chris