Juan de la Cierva and C-4 Autogyro, 1923

1,000 ៛ 1993

Cambodia

Stamp from souvenir sheet.
Not listed separately by Sg or Sn

Vertical flight

First helicopter model of Launoy and Bienvenue 0.07$	Steam helicopter of Ponton d'Amecourt 0.39$	Autogyro Cierva C8 0.08$	Helicopter Vought-Sikorsky VS300 0.1$
French Vertical Take-off Jet 0.13$	Juan de la Cierva and C-4 Autogyro, 1923