2015 – Leonardo Da Vinci 4 values New Leonardesque series

The theme of the series are the drawings of the great Leonardo Da Vinci:

detail of the drawing by Leonardo da Vinci, The proportions of man according to Vitruvius (Postage Stamp rate A);
Aerial screw, precursor of the helicopter,
(stamp tariff A zone 1)
design of a mechanical wing,
(A zone 2 rate stamp)
Giant crossbow, detail of the Atlantic Codex displayed in the Veneranda Ambrosiana Library in Milan (postage stamp A zone 3)