BOOK ONE

This full-page woodcut illustration details the proportions and profiles of a Classical architectural order, likely the Tuscan order. The diagram is split into sections to show the three main parts of the structure. At the top is the entablature, which consists of the cornice, frieze, and architrave. The cornice is decorated with a lion mask that serves as a water spout. The middle section shows the column capital and the top of the shaft. The bottom section depicts the base of the column and its pedestal. Numerical measurements are provided along the left side and the central axis to define the height and projection of each element in modular units. Labels A through P correlate the drawing to the descriptive text.

Proportional Measurements

Vertical measurements on the left:
11
13 3/4
10
12 1/4
5 2/3
8
8 5/6
4

Measurements within the central axis:
10 1/2
2
10
10
9
7 1/2
6
2
5 3/5
8
10
6 3/4
9 1/2
21

Diagram Labels

И The letter N is printed in reverse.

ρ The letter Q is printed in reverse.

A significant amount of text from the reverse side of this page is visible through the paper, appearing as mirrored ghosting around the central and right areas of the architectural diagram.

M O I

I, cyma recta and cyma reversa

These terms describe S-shaped moldings. A cyma recta curves outward at the top. A cyma reversa curves inward at the top. H Cornice. I Frieze. K Architrave. L Capital. M Shaft of the column below the capital original: "Vivo della colonna." This refers to the "living" or main body of the column shaft.. N Base of the column at the bottom. O Pedestal of the column. P Base of the Pedestal { cyma recta and cyma reversa }.

To the right of the Architrave marked L is the profile of an Architrave made simply, in a plain manner.

Technical