Popescu - Flying Machine, French Patent 345362 of 1904
A French patent specification of 1904 granted to Dimitri Popescu and Isak Aspis for a flying machine, issued as a single-plate technical filing for the national patent office and its examiners. The lone illustration is a hard-line engineering elevation in fine black rule work, symmetrical about a central mast and dense with italic letter keys, printed on aged paper still carrying stamped numbers and handwritten archive notes that designers can use as ready-made technical-drawing texture.
