Automatic translation: HELICOPTER INVENTION OF SIKORSKI IGOR IN 1939
HELICOPTERO INVENTO DE SIKORSKI IGOR EN 1939
Credit:
Album / Oronoz
Warning:
The use of this Visual Content may require additional permissions. In the event that the work depicted is not in the public domain in the country where the licence is exploited, the rights of the visual artist or his/her successors in title must be obtained and cleared in accordance with applicable law.