1. University of Pennsylvania, Ms. Coll. 196 DS ID: DS1757 Title: Letter Author: Piero Vettori Date: 1563-1585.
2. University of Missouri, Fragmenta Manuscripta 206 DS ID: DS10279 Title: Letter and Notes Place: Germany Date: 1642, April 23; s. XVII(med); 1640-1660 and s. XVII(med); 1640-1660