The Da Vinci Notebooks
The narrow cornice above the hall lire 30.
The cornice beneath that, being one for each picture, lire 7, and for the cost of blue, gold, white, plaster, indigo and glue 3 lire; time 3 days.
The pictures below these mouldings with their pilasters, 12 lire each.
I calculate the cost for smalt, blue and gold and other colours at 1 1/2 lire.
The days I calculate at 3, for the invention of the composition, pilasters and other things.