-Inventioni d’ornamenti d’architettura di Michel Angello Buonaruotti e d’altri
-Gio Francesco Baroncelli
p.58: Thats the only drawing where I’d found helping lines. I wonder if the author was just tired that day or if he let them there on purpose to show how everything’s perfectly aligned!p. 82: especially the lower window caught my eye because its sides are not parallel what gives it a uniqueness.