I am not sure whether to put this under Prototype or H0 modelling, but as it more to do with DB practice than Marklin, I have put it here.

I have two separate but related questions about the DB numbering of wagons, which I hope the knowledgeable folk here will be able to help me with.

1. Marklin 4624
This model has appeared for many years in several sets, and individually as Item No. 4624, and is described as DB Type OOtz50. This would subsequently have been reclassified as Type Fa(something) and Marklin shows Fads, although this website http://www.dybas.de/ which looks pretty authoritative suggests that they might have become Fal or Fals. (Type Fads in not mentioned.)

However my particular question relates to the Era IV representation of Item No. 4624 which carries the number 696 0 333-9. The Dybas website apparently shows that no wagons of any type carried numbers 696(anything) (the OOtz50's became 655 x xxxx) so have Marklin just guessed at a number or was the number series starting 696 something special?

2. Marklin 4663
This is a heavy-weight bogie bolster of Type Rs 680 (formerly SSlmas53). I have just acquired 4 more of these beauties so I now have 7 in total, but they all carry the same number 390 3 357-2. This number matches the Dybas database in every respect so there is no issue here but I feel I want to apply individual numbers to these wagons. As my layout is/will be late Era III/early Era IV, I would like to include some un-renumbered wagons in the consist, so does anybody know the former numbers of this type? There were apparently 5500 of them, so there should be plenty of choice! Fleischmann have an Era III version which looks as if it is numbered 081327, so this is a starter but if anyone can come up the full range, I would be grateful.

Thanks as always in anticipation.