could be anythingfrom the 50's-80's, looks like it may have a non-schwinn chaingard or at least i cant see it clearly in the pic and cant tell the brake set-up either, could be any # of different models. best thing to do is get the serial number and then figure out what bikes models were made that year. when you get the bike, see what kind of decals are left on it and try to decide what parts are original.
looks to be a middleweight though so if im right it could be a tiger, typhoon, american, jaguar, panther, corvette or a few others ...