Follow-up on Jan's comments about Paris newspaper courier (porteur) races.
There's some interesting stuff here:
http://www.blackbirdsf.org/
CONTENT WARNING! (ok -- relax now) The video links to a French site, http://www.ina.fr (http://www.ina.fr/economie-et-societe/vie-sociale/video/AFE00001070/course-des-porteurs-de-journaux-au-palais-de-chaillot.fr.html) which is really Alice's rabbit hole for anyone interested in period Euro history: Bikes, races, people, economy, WWI, between & pre-WWII, WWII (fascinating, esp. considering the Occupation) including some war years runnings of Paris-Roubaix !, etc.
The content warning is because you should have plenty of free time before wandering down that road ... and you'll want to book mark it.
;-)
a bientot, mes amis!
Bob Hillery
Stratham, NH, USA ...