Best shops in Paris

[Sptz]

Hey,

I'm in Paris for a few weeks, what are the best shops I can visit to take a look at some high end drip tips and RDAs?

Cheers!

 

[PTJD]

Sorry a little late to post but here is one I went to last fall. Its on the side street between Place Monge Metro station and Rue Moffetard.