Third Reich World Congress for Free Time and Recreation MiNr. 622 MiNr. 623 This series was issued on 30 June 1936 to commemorate the World Congress for Free Time and Recreation in Hamburg. Set Date(s) 30 June 1936 Watermark(s) Album Page(s) World Congress for Free Time and Recreation MiNr. 622 MiNr. 623 This series was issued on 30 June 1936 to commemorate the World Congress for Free Time and Recreation in Hamburg. Set Date(s) 30 June 1936 Watermark(s) Album Page(s)