These cards are Deutsches Reich MiNr. P308 overprinted for use in German-occupied Ukraine.
This series was issued on 3 February 1944 for use in Southern Ukraine.
This set was issued on 14 November 1941 for use in German-occupied Ukraine.
Shown below are the stamps of the GermanStamps.net Collection on the physical album pages.
During the German occupation, overprinted Hitler-head issues were the primary postage for occupied Ukraine. In addition, at the beginning and end of the German occupation, several local administrations issued emergency local issues to fill the void left between the changing national governments.