Yugoslavia, Kingdom. An Army Air Service Observer's & Navigator's Badge, By Karnet-Kisely certificate_of_authenticity acquired without its ribbon

acquired without its ribbon

" (Gesetzlich Geschützt) and maker marked with the Christian Theodor Dicke Co

engraver marked "F VERNON" on the obverse

the battalion was transferred to the Military Command in France

84 mm (w) x 85

Yugoslavia, Kingdom. An Army Air Service Observer's & Navigator's Badge, By Karnet-Kisely certificate_of_authenticity acquired without its ribbonSilver, marked "900" (silver), maker marked "KK" (by Czechoslovak manufacturer Karnet Kisely) and with very low number stamped "15" on the reverse, 50. 3 mm x 66. 3 mm, dual screw backs (one retaining nut missing), light contact and surface wear, very fine. A scarce badge.