3. University of Pennsylvania, Oversize LJS 496 Title: Treatise on practical mathematical calculation Place: Italy Date: [between 1475 and 1499]
4. University of Pennsylvania, Oversize Ms. Codex 1209 Title: Account book Place: Toulouse Date: 1492-1494.
5. University of Pennsylvania, Oversize Ms. Codex 1253 Title: Statutes Author: Uffizio della mercanzia of Florence Place: Florence Date: 1519-1547.
7. University of Pennsylvania, Ms. Coll. 742 Folder 107 Title: Minutes Author: Università de' mercanti (Siena) Date: 1399.
8. University of Pennsylvania, Ms. Coll. 753 Title: Family documents Author: Uguccioni family Date: 1520-1534.
9. University of Pennsylvania, Ms. Coll. 754 Title: Family documents Author: Detti family Date: 1578-1591.