Looks like a great book from Clive Hart, thanks for the reference. I found in the volume Pioneer aircraft of Putnam's history of aircraft another piece by Clive Hart ('Dreams and realities'), which shows a picture of the 'dragon volant' that accompanied the treatise offered by Burattini to the Polish king Vladislav IV.
To my amazement the copy of the original shows much more detail than the one on internet I have included a few postings ago. The original has letters which explains there usage. So is E the big bulb on the back of the dragon described as a folded parachute (!).
It would be nice to see a complete copy of the original treatise with the sketches (without any photoshopping ....

).
Probably this is the manuscript mentioned by Clive Hart
Quote:
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Paris, Bibliotheque nationale, MS Lation 11195, ff. 50-61.
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Cheers
Kees