This is an excellent document, packed with clear and detailed information.
In terms of forensic dating of the many variants of the Simplex Tour de France, this catalogue shows:
- Publisher: Simplex
- Country: France
- Date: 1953
- Derailleur brands: Simplex
- Derailleurs: Simplex Tour de France, Simplex Juy 51, Simplex Rigidex, Simplex Grand Tourisme
