Established in 1908 at in Rue Parmentier, Saint-Étienne, Société Anonyme des Constructions Mecaniques de la Loire built motorcycles using single-port and twin-port two-stroke engines c1952-1959.
The company was apparently absorbed by Automoto around 1958 (or possibly some years ealier), and Socol models were produced for a short period thereafter.
Models include the Type SCL with 125cc/175cc Aubier & Dunne engines built from 1954-1958.
Sources: OTTW, antiquites-brocante.fr