Netherlands 1933 Air Mail Special Flights
From Stamps of the World
- Issue Date : October 19, 1933
- Designed by : Aart van Dobbenburgh
- Printed by : Joh.Enschedé, Haarlem
- Print Process : Photogravure
- Perforations : 12.50
- Valid until 25 June 1946
- Meant for Special Flights ("bijzondere vluchten"), such as flights to Netherlands Indies with aircrafts "Postjager", "Zilvermeeuw", and "Pelikaan".
