Schwinn had a habit of putting together a bunch of Schwinn Approved stuff that never had a name of its own. What are your plans for this bike? I think that I hear Ebay Calling. A Schwinn collector may go high for a 72 in great shape and all shiny. The derailleur might go for big bucks to the right bidder. Some of that old stuff is highly sought after in Japan. Do a search on Ebay for completed listings of that derailleur and the bike.