CTA 4091 is at the tail end of a four-car train of 4000s, three of which are the earlier “baldies” that had center doors that were not used. We are somewhere on the North-South main line, since the train is signed as a Howard A train. Could this be Fullerton? (George Trapp Collection)

CTA 4091 is at the tail end of a four-car train of 4000s, three of which are the earlier “baldies” that had center doors that were not used. We are somewhere on the North-South main line, since the train is signed as a Howard A train. Could this be Fullerton? (George Trapp Collection)