HINDENBURG, 1 Mark red-carmine Numeral issue 1920 as single franking on registered letter to Bruck a. d. Leitha / Austria, double-circle HINDENBURG 7 10 20 g (OBERSCHL) 1 (OS handbook No. 119.10), passed German currency control in Dresden: resealing strip / control label (OS handbook No. III A 3) and violet single-circle "102" (OS handbook No. Ca), double-circle DRESDEN- 8 10 20 ALTST. 7 l transit (OS handbook No. III Bb 2) on reverse, age and use marks typical of period