The Great War was a fascinating time for airplanes – the Wright brothers had just recently invented the airplane in 1903, and militaries found out mounting machine guns (only after figuring out how ...
At foot of t.-p.: No. 4. https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!75074~!0#focus ...
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