TARNOWITZ, 10 Pfg dark red-brown Numeral issue 1920, 5 Pfg on 20 Pfg blue overprint type I a provisional issue 1920, 5 Pfg green, 10 Pfg orange-red, 20 Pfg blue Steelworks and Dove 1920 on registered cover to Graz / Austria, double-circle TARNOWITZ 29 4 20 * * d (OS handbook No. 342.6), cover passed German currency control in Dresden: brown sealing strip / inspection label (OS handbook No. III A 3) and black "57" handstamp (not recorded in OS handbook), age and usage wear typical of the period.