1951
Airmail – Panagra Airlines’ 20,000th Flight across Equator – Overprinted “20.000 Cruce Linea Ecuatorial PANAGRA 26-Julio-1951”


[Airmail - Panagra Airlines' 20,000th Flight across Equator - Overprinted "20.000 Cruce Linea Ecuatorial PANAGRA 26-Julio-1951", type ZL]


[Airmail - Panagra Airlines' 20,000th Flight across Equator - Overprinted "20.000 Cruce Linea Ecuatorial PANAGRA 26-Julio-1951", type ZM]

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