| Vikto Silberer Reichsbrucke in Vienna. The first balloon photograph taken in Austraia 1885 (taken) 1908 (published) Book illustration Internet Archive LL/53289 Alfred Hildebrandt, 1908, Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon, (London, A. Constable & Co. Ltd.), p. 289, fig. 182
| |