Libro di aritmetica
This is a manuscript arithmetic book in Italian, dated 1500 and attributed to Dibner, Bern in the Smithsonian Libraries collection, apparently a practical merchant's handbook of calculation. The four pages show handwritten Italian text in brown ink on aged paper, with columns of sums, multiplications, and long division laid out in tight vertical stacks, underlined totals, and bracketed groupings. A designer might draw on the hand-ruled rows and cramped working-out as a source for textured, archival layouts or for numeric typography with an informal, ink-on-paper feel.
