Don't know about the routes, but I remember some of the planes. In the late 1980's the Eastern Shuttle (before it became the Trump shuttle, and long before the Delta shuttle) used some 727s with bilingual English/German cabin signage that I was told had come out of FRA/BER service. It may have been posted before, but an interesting site for airline nostalgia: http://www.pbs.org/kcet/chasingthesun/