Blank verso, invisible before restoration
The verso of this leaf carries no writing or drawings of Leonardo's own — the faint lines visible are show-through from the mechanical-wing studies on the recto — and it was invisible before restoration.
Invisibile prima del restauro. Privo di scritti e disegni.
Invisible before restoration. Devoid of writings and drawings.
Reader's Edition — described with AI from the e-Leo transcription.