Two relevant threads:

http://www.fodors.com/community/euro...s-in-paris.cfm

https://www.tripadvisor.com/ShowTopi...de_France.html

Thanks Sparkchaser. I hope the shops are still open!

There are shops at Clignancourt for vintage posters. The prices in France are as much or more than in the US, in my experience. The woman in the US who "found" it was also a dealer, and able to deal in a far more discounted way. I have loved and shopped for them forever--and never been able to get the price to what I could justify.