Faint geometric solids and inscribed figures
A polyhedron, a gridded sphere, hexagons and inscribed squares; catalogued as blank before restoration
The catalogue records this side as invisible before restoration and without writing or drawing, yet the restored sheet visibly bears faint geometric studies. In the upper half are a solid drawn in perspective, a sphere ruled with meridians and parallels, and several hexagons and squares with inscribed figures; lower down are lighter perspective and stepped sketches. As the bundle supplies no transcription, these are described only from the image and further untranscribed content may be present.
On this page
Polyhedron and gridded sphere
The upper area shows a faceted solid drawn in perspective with internal construction lines, and beside it a sphere ruled into a grid of meridians and parallels, both faintly sketched in metalpoint.
Hexagons and inscribed squares
To the right are several hexagons and squares enclosing inscribed figures, small plane-geometry constructions studying how one polygon sits within another.