“Commentarii delle cose de Turchi, di Paulo Giovio, et Andrea Gambini, con gli fatti, et la vita di Scanderbeg,” 1541 (Commentaries on the affairs of the Turks, by Paolo Giovio and Andrea Cambini, with the deeds and life of Scanderbeg.) The dolphin-and-anchor image is the printer’s mark, https://lccn.loc.gov/45044727?loclr=blogint.