If you are going to call your derailleur 'Le Rectiligne', it is always best to market it surrounded by distractingly wavy lines.

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

• Publisher: Le Vélo Boxe
• Country: France
• Date: November 1934
• Derailleur brands: Caminade
• Derailleurs: Caminade Rectiligne