According to the Güterwagen-Handbuch, as of 1952 the DR stilll seemed to be using Gattungsbezirke as a way to classify their cars, alongside DR USSR-ZONE. But though they didn't continue using Gattungsbezirke named for Polish cities, like Oppeln or Stettin, oddly enough, they did continue to use names from the West and Austria.

The 1957 edition of this same book has no Gattungsbezirke or USSR-Zone markings listed as current.

All the best,

James