Air Mail cover 1908 special balloon postcard "Glück ab!", carried by the balloon "Sirius" and with written message (regarding a flight) and signature of Captain Hoffory, addressed to Vienna and bearing Turul 5f. tied by "BUDAPEST-GYÖR-WIEN" c.d.s. (9.7) and according to the text posted after landing near Bö-Sárkany. Photo