Bob, I have one and it does indeed have the curved rear tube. It also has a Campagnolo Gran Sport Derailleur on a 3 speed freewheel....and a really long shiftercable. It runs on 650B wheels though I wonder about my 40+ year old Schwinn Hurricane tires as we cruise the beach path enjoying the *sights* :^)
Matt "too many Schwinns to count" Gorski Belmont Shore, CA
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I also saw a Town and Country triplet one time, but I don't
remember if it had the curved seat tube or not.
Bob Freeman
Seattle