Seminal arms treatise by Giacomo Grassi, printed at Venice in 1570, with portrait and copper engravings in the text. Gelli emphasizes both its rarity and its later French (1573) and English (1594) translation history.
Castle also records the 1570 Venetian Di Grassi witness and notes that some copies bear the Ziletti indication.
Castle also records the 1594 London English translation of Grassi, describing it as Englished by J. G. gentleman.
Vigeant 1882 notes that copies of the 1570 Venetian Grassi survive with two different author portraits and stresses the book's importance both in its own right and as a principal guide for Saint-Didier. He also highlights the in-text engraved apparatus and the treatise's especially interesting character for students of the early Italian school.
Phase 584: the English translation shell (former work 1202) was consolidated as the 1594 edition already present here; Folger confirms only the initials I. G., not Geronimo.