Third Reich Art Day MiNr. 700 This stamp was issued on 12 July 1939 to commemorate German Art Day. Set Date(s) 12 July 1939 Watermark(s) Album Page(s) Art Day MiNr. 700 This stamp was issued on 12 July 1939 to commemorate German Art Day. Set Date(s) 12 July 1939 Watermark(s) Album Page(s)