Verso with a small device sketch
A faint mechanical drawing akin to the apparatus on the recto
Invisible before restoration, this verso carries a single small drawing analogous to the box-and-weight devices on the recto, boxed near the upper centre and faintly showing through onto the recto side. The remaining marks across the sheet are show-through of the recto's mechanisms.
On this page
Small mechanical sketch
A small apparatus with a suspended weight sits within a ruled box near the upper centre of the leaf. It resembles the metering devices drawn on the recto and is the only original drawing on this side; the rest is show-through.