1912, "Flight contribution Quedlinburg", 2 special cards (a unmailed), superb (Image)

1911, "German Round Flight", total distance as unused printed matters folding map, with all daily routes pictured, superb (Image)

Professor Dr. L. Prandtl (1875-1953), one the most important aviation researchers in Germany, letter of thank on the occasion of the bestowal the golden medal the Royal Aeronautical Society, DIN A4 page punched and traces of use (Image)

Wolfgang Gronau (1893-1977), German aviation pioneer, 5 various photos and signed thank-you card, superb (Image)

Documentation "August Euler" (pilot of the from Euler built "yellow dog") to the centenary of the aviation pioneer, 5 different documents, superb (Image)

1909, ILA-Frankfurt: medal count from Zeppelin (28, 7 mm), bronze gold plated, on ILA album page with exhibition picture postcard, postal stationery and vignette, superb (Image)

1897-1926, 10 various cards, balloon mail and airmail, superb (Image)