Patrice
Try a site for an organization called UNIQUE, at http://members.aol.com/rarechromo they can be e-mailed with questions. Also I have been e-mailing a young man who has an organization called Kest. He is in New York named David Weiser,his e-mail is KEST1999@aol.com. He may be able to direct you to additional help. Good luck!