Johan Hetebrij:
N.220 Nieuport 11 @ Autotron Drunen, 15-Aug-1981 by Johan Hetebrij
Johan Hetebrij:
D-5097 Grunau Baby IIb built by Schleicher. By Johan Hetebrij
Johan Hetebrij:
PH-HOE Fokker S.11 15-Aug-1981 by Johan Hetebrij
Johan Hetebrij:
N.220 Nieuport 11 @ Autotron Drunen, 15-Aug-1981 by Johan Hetebrij