Almost, locked for you for another try.
Hmmmm...not quite sure if you mean the marque is wrong or misspelt.
The information I have (not found in the usual sources) is as follows -
Serf et Didier built between 1928-1933 by Entreprise Serf et Didier, Place de la Mairie, Colombey-les-Belles
(M-et-M)
One car delivered each month.
If this is incorrect, please open it up again.