Third Reich Labor Day MiNr. 745 This stamp was issued on 30 April 1940 to commemorate Labor Day, 1 May 1940. Set Date(s) 30 April 1940 Watermark(s) None Album Page(s) We cannot display this gallery Labor Day MiNr. 745 This stamp was issued on 30 April 1940 to commemorate Labor Day, 1 May 1940. Set Date(s) 30 April 1940 Watermark(s) None Album Page(s)