Notes on the Marque
The address in 1908 is given as 42, rue de Maubeuge, Paris.
At least two examples exist, dated 1903 and 1904. They are of very different appearance, the 03 having a cylindrical tank and pedals, with the '04 having a narrow flat tank and sans pedales.
English translation for the word sommaire is synopsis, summary.
Sources:
31st Dec 2016
This page has an image of a 1904 350cc Sommaire
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