Jerry, you should visit Bob Huffords site at this link. At the bottom of the page there are several links with a lot of information on the Schwinn line of "lightweights". Bob did a fantastic job with this site and it is a wealth of information for Schwinn collectors.
BTW, I have a Schwinn Sports Tourer and first year 1960 Continental that I am parting with. Here is the link.
Elizabeth, NJ USA