Cutting a groove in the 'grotta' with a toothed rake
Notes and a red-chalk sketch of an iron-toothed rake forming a groove and clearing earth
A red-chalk sketch above the text shows a large sloping surface with a raking tool drawn against it. The note explains how to form a groove (crenna) about a quarter-braccio deep in the 'grotta' using iron teeth, then to lift the loosened earth away with the handles of a rake and empty it into a box. The diagram is keyed with the letters a and n.
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Cutting a groove in the 'grotta' with an iron-toothed rake
The note describes forming a groove (crenna) about a quarter-braccio deep in the 'grotta' by means of notches or iron teeth. These teeth are rubbed against the base of the grotta; then the handles of the rake are taken up and the loosened earth on it is emptied into a box (cassa). The diagram is keyed a n.