Arithmetica pratica[between 1575 and 1600]itaManuscript on paper (thick) of methods and examples of addition, subtraction, multiplication, division and the rule of threeIn Italian.Watermark: shield with kneeling man holding cross?. Similar to Briquet 7629?.Script: Copied by one hand in Humanistica Cursiva Libraria/Formata.A few geometrical figures.Pages slightly damaged by the acidity of the ink.Binding: Original limp parchment, a large circle traced with a sharp pencil on the front cover, a group of small circles in the form of a cross on the rear cover. At the top left corner of the front cover a paper label with the 16th-17th century inscription in Humanistica Cursiva: "Mathematicorum. Anonymi arithmetica manu scripta linguae Italicae". On the spine is written in the same type of script "Aritmetica" and, at the top, the letter "A".