Are you asking about the solid brass mandrel, the hollow unplated brass mandrel, the plated thick wall brass mandrel, or the thin drawn brass nickel plated mandrel?
Regards to all, Al -----Original Message----- From: harvey kravitz <[email protected]> To: Antique Phonograph List <[email protected]> Sent: Sat, May 15, 2010 2:29 pm Subject: [Phono-L] Edison Brass Mandrel Does anyone know when Edison stopped using brass mandrels for their Homes and ther machines? I always wondered about that. Ant information will be greatly ppreciated. hanks, arvey Kravitz ______________________________________________ hono-L mailing list ttp://phono-l.oldcrank.org _______________________________________________ Phono-L mailing list http://phono-l.oldcrank.org

