Survey of Streets and Houses; a Drill Mechanism
Plots between parallels measured in braccia, with named landmarks and owners
A small labelled diagram at the top shows a drill worked from a 'noce' (nut) and a reel or spinning-wheel. The rest of the sheet is an urban survey: rows of rectangles drawn between parallel lines, each a plot with a measured frontage and depth in braccia. The notes attach landmarks and owners to the figures — Silvestro, the ponte Tincone, the porta di Vangelista, and the house and street of messer Mariolo, with the house of Vangelista given as 75 braccia. Faint blue-grey ruling and brown-ink numbers fill the two banded rows.
On this page
Drill driven by a nut and reel
At the top of the sheet a mechanism is labelled as a drill taken from the 'noce' (nut) and the 'arcolaio' (reel or spinning-wheel), i.e. a drill rotated by a cord-and-reel drive.
Landmarks measured along the street
A second series of measured plots names urban features: 16 1/2 at Silvestro, 14 1/2 at the ponte Tincone, 15 1/4 at the porta di Vangelista, then 20 and 26 1/3. The figures record frontages of buildings and gates along the street.
House and street of messer Mariolo
Below the plots, notes fix dimensions to specific properties: something enters 7 1/2 braccia into the house of Mariolo, the street of messer Mariolo is 13 1/4 braccia, and the house of Vangelista is 75 braccia. The entries plot the block by tying measures to named owners.