[Early aerial photography] Das Semmeringgebiet im Fliegerbilde.

Vienna, "Herausgegeben vom Verbande deutschösterreichischer Flieger im Verlage der "Luftbild" Gesellschaft", 1919, series of 25 aerial photos, each 11.5 x 16 cm. and each individually pasted on bifolium, with title-bifolium with table of contents, loose as published in the original cloth portfolio designed by Adolf Karpelsus and made by Ehn & Günther, folio size (minor defects).

Very rare, no other copies traced.