Pfalz military biplane license Otto Flugzeugwerke Add to clipboard * I.4.146 0589 * I.4.146 - 0589 File 1914 Part of Stiftung Deutsches Technikmuseum Berlin, Historical Archive Includes: Report about the flight of Bruno Büchner with Pfalz-Otto plane to German South West Africa. In: Stiftung Deutsches Technikmuseum Berlin, Historical Archive >> I.4 Discounts >> I.4.146 - NL Peter M. Grosz