They are an LGB make believe, the prototypes are an Austrian Coach which has been put in many differing liveries. Done at a time when LGB had not got round to making the right stock for the likes if the Crockodile, but they are a nice believable looking livery. I have a set of 2 similar that I used in my early DR days as little else was available at the time. Got taken over on my line by the correct type of DR coaches, but still get a run now and again.