Airmail - National Philatelic Exhibition, Madrid - As Previous, in Different Colour and Overprinted CORREO AEREO 1936
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1936
Airmail - National Philatelic Exhibition, Madrid - As Previous, in Different Colour and Overprinted CORREO AEREO
3. apríl WM: nikto Rytina: F.N.M.T. Perforácia: Imperforated
![[Airmail - National Philatelic Exhibition, Madrid - As Previous, in Different Colour and Overprinted CORREO AEREO, typ GW]](https://www.stampworld.com/media/catalogue/Spain/Postage-stamps/GW-s.jpg)
![[Airmail - National Philatelic Exhibition, Madrid - As Previous, in Different Colour and Overprinted CORREO AEREO, typ GW1]](https://www.stampworld.com/media/catalogue/Spain/Postage-stamps/GW1-s.jpg)
