Near-Blank Leaf with Show-Through of an Eye-and-Window Diagram
A faint ghost of the facing optical construction; no transcription available
This leaf is essentially blank: the only marks are a faint triangular optical construction and a few lines of writing that show through the paper from the ink drawing on its other side. No transcription is provided for this page, and any writing it bears remains untranscribed.
On this page
Faint show-through of a triangular eye-and-window diagram
Near the top of the page a faint triangular construction, with an eye at one apex sending rays toward an aperture above a hatched ground line, shows through from the drawing on the reverse. A short line of faded script and a few words appear at the upper right. No transcription accompanies these marks.