Thanks to several CR members for their responses, and especially to Bob Hufford for his reply and his excellent Schwinn site. I just bought this early 70's Sports Tourer:
Yeah, I know, if I waited about 5 years, I might find one for $50 at a garage sale, but I find these fillet-brazed models intersesting, and I think maybe they are a bit rare, since they probably didn't sell that many, as they were more expensive than Continental, but weren't European enough to be "cool" in the 70's. The catalogs on Bob's site say that "Schwinn Approved" ratcheted barcons - Suntour no doubt - were an option, so I won't even have to feel guilty about changing out the stem shifters.
The seller was surprised to get that much, and threw in free shipping so delivered price isn't that bad.
Regards,
Jerry Moos
Big Spring, Texas, USA