Map of Stabile di Guastalla

The drawing shows all the land of the vast estate of Guastalla di Sona in 1774, southeast of Lake Garda, then owned by the Marquis Giorgio Spolverini-dal Verme.
In the middle of the upper margin, inside a cartouche, is the title of the drawing: Stable / of / Guastalla. Symmetrically, in the lower margin, is the coat of arms of Spolverini-dal Verme.
Of particular interest is the representation of the compass painted in the middle of the map. It is decorated with a bouquet of flowers, and it is also legible as a wind rose; actually the blue ring of the needle indicates the initial letter “O” of Ostro, that is the hot and damp wind from the South.
Four cartouches describe the intended use of the fields, for a total of 2478 Verona fields.
Centrally located in the map is the Palace of Guastalla, the axonometric representation is surprising for the fidelity of details.