Да это просто рай какой-то)

Great scenery! Did you note the registration plate of #205? It's still missing in the database.

Thank you. The database is half correct and therefore also half wrong as far as the license plates are concerned.
In June 1991 the trolleybuses had already been renumbered in the 200 series, but still had their old D.D.R. number plates, which are listed in the database.
So the combination of new numbering and old license plates did exist.
The new registration plates are unknown to me.