World War 1 Dutch Military Binoculars - 'Carl Zeiss D.F.6x' (Doppel-Fernrohr). Originally introduced in 1907 and used extensively by different armies until the end of the war in 1918. The Binoculars are nicely maker marked by the company of 'Carl Zeiss' in Jena. The binoculars are also bearing the inscription 'D.F. 6x' and the number '594564'. The focus adjustments are still functional and the optics are clear, one of the bakelite eye-cups is slightly damaged. This pair of binoculars was given as a prize by the Dutch Department of Defense for the reconnaissance flight held at 6 March 1916, it is nicely engraved with: 'Prijs van het Dep. V. Oorlog, Verk. Vlucht 6 Maart 1916'. The binoculars are in overall good used condition, rare and unique piece of history!