These include abbreviations for terminal letters as well as the common abbreviations for m, que, qui and quod. MS 12 was written by one scribe. Light brown ink was used throughout. Red ink was occasionally used to denote divisions in the beginning of the manuscript. Ligatures of c - t are common throughout.
Joined letters are frequent throughout, but fusion of letters is rare.
The Humanistic feature of the two-compartment g is common throughout. Tall s, a prominent feature of Humanistic Cursive Book Script, is prevalent throughout. However, pointed a, another feature of Humanistic Cursive Book Script, is absent. Each book of De Oratore begins with one of the large initials. The center of the initial contains blue and green vine-work.