Lot 30003 – 1912-1925 Pioneering flights exhibit, displayed on

1912-1925 Pioneering flights exhibit, displayed on eight A3 pages, a beautifully presented study of the early development of flights and air mail, comprising scarce balloon mail (noted 1912 Ragusa and 1913 Achtung Ballonpost), WWI balloon mail, International air meetings, Austrian airships, Zeppelin visit (1913), air meetings, and post WWI flights, includes 32 cards, 12 labels and ephemera, very neatly written-up, a very fine assembly.