A Brief History of the Marque
The machine was built from 1930 to 1941 by Fernand Bert who ran a Monet-Goyon agency in Romans-sur-Isère. Some 200 of these were built. Later, it seems that Monet Goyon copied the ided and branded it the Tri-Monet.
The Monet-Goyon version was available with MAG 350/500 engines and Villiers 250/350cc engines.
For more information see: http://passion-3-roues.centerblog.net/199-le-tri-moto-bert-creation-originale-de-fernand-bert