Military architecture: a fortified wall in perspective
Faint pen sketch of a defensive work, drawn upside-down
A largely empty page bearing a faint pen sketch, drawn upside-down relative to the notebook's normal orientation. The e-Leo caption identifies it as military architecture. The central drawing reads as a defensive wall or gallery set in perspective, with a gridded panel and a triangular bastion-like form, accompanied by a few light construction lines. No prose was transcribed for this page.
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Fortified wall or gallery (inverted)
A lightly sketched defensive work in perspective, with a hatched or gridded panel suggesting a wall face and a triangular projecting form. The drawing is faint and set upside-down on the leaf. The caption labels it as military architecture.