decreton.jean-paul@
It is a combination composed of a MOTOBECANE S5C of 1938 and a sidecar IMPERIAL T35 Grand Sport manufactured by Marmonnier in Lyon.
I can provide information on the production of the MOTOBECANE brand for the pre-war period and on models with "Bloc S" engines.
Paris

Imperial Sidecars
More information on the Motobecane page.