15thc perception on swallowtail merlons?

[Pierre Dumont Himself]

In 1483, a seventeen-year-old Venetian named Marin Sanudo wrote a diary of his journey trough the Venetian provinces, known as the Itinerario per la terraferma veneziana. The diary contains descriptions of the castles and cities in which he stopped, often accompanied by pen drawings. The drawing below is included within the entry for Brixia (page 74) and presumably depicts a portion the city, perhaps a section of the Cittadella Nuova. This was a narrow fortified corridor that bisected the city, built by the Visconti to isolate the administrative district from the hostile population. 
Spoiler: Cittadella nuova (plan by M. De Paoli and 1426 reconstruction by Loreno Confortini)

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@MarcoP Can you help me transliterate the drawings?
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