It's almost identical to the Export 61, same innards and the plates and jockey cage is very similar. I know Campagnolo had a plant in Cognin, France to defeat the tariffs in the 50s, and branded some parts 'Campagnolo' France' so this may be an 'outre mer' production to get round copyright issues with Campagnolo.
A rare piece to be sure, how much did it set you back? Normally Export 61 would sell 150-300 for a good example.