My main entree into postcard collecting was a gift to my wife of French scenes. Here's one I chose at random.
Pau Le Gave et les Pyrenees vus de la Place Royale Les Basses Pyrenees
( Pau The Gave and the Pyrenees seen from the Place Royale The Low Pyrenees)
"The Pyrenean mountain range was formed between 80 and 20 million years ago as a result of the Iberian landmass (what is now Spain and Portugal) colliding with the much larger Eurasian landmass in the region of what is now southwestern France."
I couldn't find any reference online to a Mlle Genevieve Boutel. I had better luck with the stamps.
This stamp issued on February 8, 1945 was part of a series issued in a variety of denominations. It's known as Broken Chains, a reference I assume to the liberation of France from the Nazi's. The 50 centime stamp had a print run of 234,842, 000.
Franconville is currently a suburb northwest of Paris. One of its notables was post-impressionist artist, Marcel L'Enfant.
You can see his work here: https://marcel-l-enfant.com/
Thanks for stopping by.