look at serial number of the frame to see when it was made. could be possible it is an original frame with some original parts that was rat rodded with crap stuff like the front wheel, stem, seat, fork. If the tire was original it would say USA on it.
Here are some tips to determine repop from original:
Few ways to tell. look at serial number, if it doesn't match data base then not original. Second, look at fork. If the springer fork has a hole in which a brake unit can be mounted then it is reproduction, Schwinn springer forks never had this hole. Next look at seat pan, should say persons, if not then its repop. Other ways are look at rims, should be stamped Schwinn, handle bars and stems were always stamped with dates as well.