As a collector of silent films, one of the best selections of titles for
sale that I've found is Grapevine Video.  They're located at P.O. Box
46161, Phoenix, Arizona  85063.  The phone number is (602) 245-0210.
I don't have their catalog with me so I can't tell you what Norma
Talmadge films they do have, but I also know that they are planning
the release of a big new catalog any time now.  You might want to call
them and see if they can tell you what they have.  Their prices are pretty
good -- 14.95 to 24.95 or so -- and the quality, at least for very rare
silent films, is usually quite acceptable.  Good luck.
 
Jay Rozgonyi
Fairfield University