Men with various flying machines strapped to them. Engraving. https://www.rawpixel.com/image/13961060/men-with-various-flying-machines-strapped-them-engravingFree Image from public domain licenseMechanical propeller illustration vector https://www.rawpixel.com/image/573296/propellers-vintage-styleView licenseLe Follet, 1852, No.1682 : Capotes M.lle Grafetor (...) (1852) by anonymous and Anaïs Colin Toudouze https://www.rawpixel.com/image/13736758/image-paper-cartoon-faceFree Image from public domain licenseModes et Manières d'Aujourd'hui, 1922, Pl. 7 : L'Homme Volant (1923) by Fernand Siméon and anonymous https://www.rawpixel.com/image/13739933/image-paper-cartoon-faceFree Image from public domain licenseDrawing of a propeller https://www.rawpixel.com/image/571788/propellers-vintage-styleView licenseElegantia, of tijdschrift van mode, luxe en smaak voor dames, Januari 1809, t.o. pag. 12 : De vliegmachine van Jacob Degen… https://www.rawpixel.com/image/13746909/image-paper-cartoon-personFree Image from public domain licenseShip-building: an anchor workshop (top), and tools (below). Engraving by Benard after L.J. Goussier. https://www.rawpixel.com/image/14011076/image-cartoon-person-airplaneFree Image from public domain licenseThe Young Ladies' Journal, Paris Fashions, 1 May 1866, No. 25 : Etoffes et Nouveautés (...) (1866) by Louis Berlier, Emile… https://www.rawpixel.com/image/13771368/image-paper-face-personFree Image from public domain licenseJournal des Dames et des Modes, Costume Parisien, 16 octobre 1798, An 7, (68.) : Cornette en forme de Casqu (...) (1798) by… https://www.rawpixel.com/image/13773183/image-paper-cartoon-faceFree Image from public domain licenseBallonvaart van Blanchard, 1807 (1807) by anonymous, Hendrik Moolenyzer and P van Daalen Wetters https://www.rawpixel.com/image/13781787/image-paper-cartoon-personFree Image from public domain licenseSpotprent op de mislukte ballonvaart van Miolan en Janinet (1784) by anonymous https://www.rawpixel.com/image/13772184/spotprent-mislukte-ballonvaart-van-miolan-janinet-1784-anonymousFree Image from public domain licenseCharlotte Corday hiding behind a curtain, Marat dead in his bath. Photogravure after Jules Aviat, ca. 1890. https://www.rawpixel.com/image/14014962/image-cartoon-person-artFree Image from public domain licenseSpotprent op de Franse expeditie naar Egypte, 1799 (1799) by James Gillray and Hannah Humphrey https://www.rawpixel.com/image/13766565/image-paper-cloud-cartoonFree Image from public domain licensePropeller from Six Weeks Of Vacation (1880) published by Paul Poiré. Original from the British Library. Digitally enhanced… https://www.rawpixel.com/image/573444/propellers-vintage-styleFree Image from public domain licensePNG Drawing of a propeller, transparent background https://www.rawpixel.com/image/572033/png-drawing-propeller-transparent-backgroundView license