Polonia. Aéreo

Automatically generated translation

Yvert 9A/B. 1934. Complete series "CHALLENGE 1934". Postal Card "Correo por Globo" from WARSAW to PRZEMYSL. Commemorative postmark WARZAWA 31 / CHALLENGE 1934 and on the front mark GORDON BENNET 1934 / WARSAWA / EXPEDIEPAR BALLON "SYRENA". MAGNIFICENT AND RARE.