I am a member of our local historical society. We are in the process of cataloging all our artifacts and doing research to identify them and locate serial numbers and other identifying features. We have a Brunswick Phonograph. I found one like it listed on eBay. Ours is not in pristine conditions though. Any help is much appreciated. http://www.ebay.com/itm/Brunswick-Balke-Collender-Record-Player-Phonograph-/320932218325?pt=LH_DefaultDomain_0&hash=item4ab90d05d5