Two mounted paper fragments, restored blank areas
Sheet tagged for an underground canal near a fortification
The verso mounts two small paper fragments; the catalogue caption records that regions (a) and (b) were invisible before restoration and, once recovered, bear no writing or drawing. The visible fragments still carry faint mirror-script and a few small sketches together with block letters, none of which are transcribed in the bundle. The sheet is classed by the Ambrosiana among architecture and applied arts, connected with an underground canal beside a fortification.
On this page
Recovered blank regions and untranscribed marks
The caption notes that parts (a) and (b) were invisible before restoration and are devoid of writing and drawing. Elsewhere the fragments retain faint mirror-writing and small figures, but the bundle supplies no transcription of them, so their content is not read here.