This set of initial decorated letters was inspired by a font in use in the beginning of 1500s in Paris.
Exactly, we have used the set that Barthélémy Verand employed for the printing of Triumphus translatez de langage Tuscan en François, (from “Triumph” of Petrarque) in the year 1514. Some letters, lacked, have been reconstructed to propose a complete alphabet. It appears that the printer used some letters to replace others, as V, turned over to make a A, or D to make a Q.
