Engraving depicting Jakob Degens Ornithopter. Two flaps were fastened to his back by a yoke; and these he moved up and down with levers worked by his hands and feet. Jakob Degen (1760-1848) a Swiss-Austrian inventor and aviation pioneer. Dated 19th century. 01/01/1850

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Creative#:

TOP29617933

Source:

達志影像

Authorization Type:

RM

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須由TPG 完整授權

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