Note the 'Licence Le Beguec' comment below the diamond shaped logo. some of the relevant patents are held by Ange-Henri Le Beguec.

(Source gallica.bnf.fr/ Bibliothèque nationale de France)

• Publisher: L'Officiel A.C.M.
• Country: France
• Date: April 1951
• Derailleur brands: Selectic
• Derailleurs: Selectic