50 Heller delivery stamp bright magenta, tete-beche pair handstamped "We are free! + swastika", special "Reichenburg Deutsche Reichspost 8.OKT.1938 Heil Hitler!" on perfect blank envelope, printing of delivery stamp only 100, very rare as tete-beche pair, Brunel VP photo certificate (2020): "Condition faultless. Tete-beche pairs very rare.", Mi. 2.500.-