Third Reich Stamp Day MiNr. 904 On 2 October 1944, the Third Reich issued this stamp to commemorate the 1944 Stamp Day. The illustration depicts a letter and posthorn, the historical instrument of the postal service. Set Date(s) 2 October 1944 Watermark(s) None Album Page(s) Stamp Day MiNr. 904 On 2 October 1944, the Third Reich issued this stamp to commemorate the 1944 Stamp Day. The illustration depicts a letter and posthorn, the historical instrument of the postal service. Set Date(s) 2 October 1944 Watermark(s) None Album Page(s)