Blank verso, invisible before restoration
Reverse of the sheet; catalogue links it to canal-lock designs
This side of the leaf is blank: the transcription records it as devoid of writing or drawings and invisible before restoration, and the image shows only the faint show-through of the machine drawn on the recto. The Codex Atlanticus catalogue associates the sheet with sluice gates and locks for canals. Nothing is inscribed on this side to describe.