Hello

I have just had the bottom bracket overhauled on my vintage road bike, and the cups and the fixed cup have RFG printed on them. I have not been able to find any information on RFG. Does anyone know anything about this manufacturer? Were they French?. I am trying to find out what make the bike is since it has no markings on it. Were any frames in particular, built up with RFG cups.
A picture of the bike is posted below ,--- any information is welcome.


thanks.