I bought these planes around 1990. They are from the Plane Shop in New York City (now the Red Caboose, next to the Holiday Inn on 45th Street) and FEE, Far Eastern Enterprise, a mail order firm with a nice color catalog showing all these toy models.
My goal was to have one of each casting, and to choose an interesting livery. Collectors despise Schabak today and one can see the reasons here: the size was too small, the castings were not precise, the decorations often frayed at the edges, and improper packaging resulted in broken parts. These were all made in Germany, however, and do have a solid feel for their size.
Convair 440
DC-4
DC-6
Viscount 708
Super Constellation
Comet IV
Caravelle
TriStar
737-400
747-200
747-300
747-400
Ilyushin (Iliouchine) Il-76
Ilyushin Il-96
A-300