While on the " heavy side " ...The Super Sport is one of the BEST riding bikes !!!
Smooth...stable....sturdy !!!
I have one,.... 1973 all original. I never ride it as I have a 2003 Lemond Alpe D' Huez I ride most of the time.
The " vintage" bike market is " soft" right now as mentioned above.
It all depends how quick you want to sell and where you live....
If it's in good shape and rideable , I would say $ 125.00--- $150.00.
Where else can someone find a cro-moly frame with a Brooks Leather saddle, that will not fall apart like Walmart/Target stuff for 150.00 **********