https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13966159
A flying boat devised by Franciscus Lana, with sails and balloons attached to it, and with three men as passengers. Engraving after J.C. Sturm, 1789.
A flying boat devised by Franciscus Lana, with sails and balloons attached to it, and with three men as passengers. Engraving after J.C. Sturm, 1789.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use