Whilst investigating this puzzle I reckon I covered every obscure French racing marque of the period 1928/30. This car is not mentioned in any of my reference books, although now I know the answer it is covered in Georgano's Encyclopedia of the Automobile. He does not mention it in his Motor Sport Encyclopedia.
So I've learned something ! Apparently the advertising for the car listed numerous sporting successes, but I reckon they were "hyped up" and it was a bit of a dud. There seem to be a lot of DNA and DNS listed in the racing calendar.