I like to buy vintage/antique maps of places that I visit. I’m not a historian and don’t need anything fancy or expensive. Can anyone suggest any shops in Paris that might have what I’m looking for?
http://www.librairie-lebail.fr/
www.loeb-larocque.com
http://www.katzmoor.com/fr
www.franceantiq.fr/slam/lebail-weissert.
I did research on this very topic earlier this year. Above are the places I found in Paris. I have not been to them yet -- planning to go to the second one on the list in June.
There are lots of old maps which come up for auction at Drouot in the 9th. You can check the action calendar here:
There is an antique book market at Parc Georges Brassens every Sat and Sun. Location is a bit out of the way, but there are well over fifty stalls and, while I do not specifically remember maps, I definitely remember vintage guidebooks being sold.
If that and the others' suggestions fail, I'll see what I have in my own map collection ;)