Isometric triangle grid with stepped solid and knots
A lattice of equilateral triangles rendered as a three-dimensional stepped form, topped by woven knots.
A large lattice of equilateral triangles combining into rhombi fills the sheet, its intersections marked by dots and its cells shaded so that the whole reads as a three-dimensional stepped structure seen in parallel projection. Two woven interlace knots sit at the top of the page, and small triangular diagrams appear at the lower right. A few lines of mirror-script accompany the constructions but were not transcribed in this bundle. The folio carries an old number ('34') and further untranscribed writing.
On this page
Lattice of equilateral triangles forming a stepped solid
The centre of the sheet is occupied by a grid of equilateral triangles combining into rhombi, its nodes marked by small dots. The pattern is shaded and stepped so that it presents a three-dimensional solid built up in tiers. It works as a proportional and projective construction rather than a finished object.
Parallel (axonometric) projection of a stepped form
The triangular lattice is organized to depict a stepped volume in parallel projection, without a converging vanishing point. Receding edges stay parallel, giving the tiered form a measured, three-dimensional appearance. Fainter stepped outlines repeat the motif at the lower left.
Interlace knot ornaments
Two woven knot designs are drawn near the top of the page, a small one above a larger, denser interlace. The strands cross over and under in Leonardo's characteristic continuous-band manner. They sit apart from the geometric lattice below.