Beams, Lattice-work and Lettered Broken Lines
A timber framework of 12 braccia, lines within a circle, and zigzag lines b, h, a, c, f, d
A largely graphic sheet combining geometric line studies with a construction detail. At the top a woven lattice or hurdle-work rests on horizontal beams carried by vertical posts, noted at 12 braccia. Below, zigzag broken lines are lettered b, h, a, c, f, d, and a small circle is crossed by internal lines. Faint additional sketches are present but were not transcribed.
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Framework of beams and lattice-work, 12 braccia
Horizontal beams supported on vertical posts carry a densely woven lattice or hurdle-work, of the kind used in earthworks and revetments. A dimension of 12 braccia is recorded alongside the structure.
Broken lines lettered b, h, a, c, f, d
A set of angled, broken lines is drawn and marked at its vertices with the letters b, h, a, c, f, d. The zigzag segments lay out relations of angle and direction between the lettered points.
Lines within a circle
A small circle is drawn and crossed by internal straight lines meeting near its centre. The figure sits between the lattice above and the broken lines below.