1913, airmail on the Rhine / Düsseldorf, 10 Pfg on airmail postcard with 5 Pfg Germania from \"airmail on the Rhine / DÜSSELDORF 20.4.13\" to Nuremberg, 10 Pfg small perforation fault right above, Germania stamp two-sided flat perforated; card on the reverse side with much text and decorative vignette \"citizen of D++sseldorf children auxiliary day\", Si. 175.-