Originally Posted by
0.2HP
Therefore it is impossible to know the value. Someone who knows something is going to have to inspect these bikes to know anything about them.
Sure, but when you quoted half my sentence you changed the context a bit. The rest of the sentence included "if they are in decent shape". In reality I do know a little about old Schwinns and am capable of assessing condition, but it can't hurt to ask for the opinion of someone like Metacortex who is obviously an expert.
I also included "Assuming a condition of fair but missing some original parts."