34 rue St-Ferdinand, PARIS (17)
Part of the Gentil group.
Manufactured by Robert Macé, 1923-1924
Believed to have been displayed at the 1923 Paris Salon, very few were built before the company was sold to Edmond Gentil in April 1924, who began marketing them under the Olympique brand. RM also sold bicycles under the RM brand built by Messrs. Thomann and Caron.
None of the RM motorcycles have survived.
Source: Didier Mahistre