In conversation last night at the hot club of Glasgow, I'm told that Selmer Maccaferri guitars were sold from
the Selmer shop in Place Dancourt, in Paris. I'm not sure if it's well known, but the Selmer shop premises and Place Dancourt still exist, although it has been renamed - it was mentioned in a thread I contributed to on a saxophone forum a while back- there are some new and old pics of the old Selmer shop, including an expensive oil painting ;-) , and details of its location ,etc..
here's the link:
http://forum.saxontheweb.net/showthread.php?54477-Still-there-Place-Dancourt