This image is a derivative work of the following images: File:Airship_Italia_flights.svg licensed with PD-self, PD-self/ru 2009-03-05T12:55:50Z Ahnode...
DescriptionAirship Italia flights.svg English: Airship Italia's flights, 1928. Русский: Полёты дирижабля Италия, 1928г. Date 05/03/2009 Source Topographic...
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