A technical drawing and correspondence regarding a try to patent a flying bicycle, Germany, 1897–1913
Technical drawing in white ink on blue box with four views of a bicycle with rear propeller and pivoting wings. Together with a negative imperial patent decision from the year 1897, as well as later correspondence of the inventor with a patent engineering office in Leipzig. Curious! Dimensions of the drawing 32.5 x 41.5 cm.
Condition: II
Reserve
Time, Location
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Technical drawing in white ink on blue box with four views of a bicycle with rear propeller and pivoting wings. Together with a negative imperial patent decision from the year 1897, as well as later correspondence of the inventor with a patent engineering office in Leipzig. Curious! Dimensions of the drawing 32.5 x 41.5 cm.
Condition: II
Reserve
Time, Location
Auction House
