10 Centimos overprint in German text on 10 Pf. Reichspost (official not issued) being a block of four, 3 values mint never hinged, the right upper stamp with tenuous hinge trace, photo expertize Ronald F. Steuer VÖB: "except for one minimal rubbed spot on face by of the left upper stamp in perfect quality. " (stamps still entirely unsigned!) Michel 12. 000.