Cover from Leon military air field to Ahedo, with very rare franchise mark «Aerodromo de Leon, Franquicia Postal»
Referència C00456
Cover from Leon military air field to Ahedo, with very rare franchise mark «Aerodromo de Leon, Franquicia Postal» and military censor mark «Censura Militar, Aerodromo de Leon».
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Cover from Leon military air field to Ahedo, with very rare franchise mark «Aerodromo de Leon, Franquicia Postal» and military censor mark «Censura Militar, Aerodromo de Leon».