I've been on the lookout for one of the fillet brazed Schwinn bikes or even just a frame for some time. I picked this up recently locally.
It is in good condition considering that it is 50 years old. Some parts have been changed. The seat, front derailleur, rear derailleur, shifter, 5 speed freewheel are different than original, chain and of course tires. It had a sticker from Al's Cycle Center in Amityville, so I suspect that they were the people responsible for the new parts to get it to be a riding bike again. They sell used bikes in addition to parts and service.
I will be working on this and posting what I learn. I am using this as a project build thread and hopefully also a resource into some details of a 1972 Schwinn Super Sport.
Schwinn calls the color Opaque Blue. The frame size is 24".