These Rusties were part of a beginners pack under the Toy Train label. They probably choose the name, because Starlight Express Musical was popular in Germany at the time.
It was LGB's first excursion into the 1 : 20,3 / 3 Foot world, long before Bachmann and others.
For me it was my first attempt of kitbashing and weathing:
They were cheap enough at shops or at flea markets, 40 - 50 Deutsch Marks in 1994, to use them for kitbashes of all kinds
In the above example,I investd a lot more money in metal detal parts than into the basic model.
Have fun
Otter 1 / Juergen