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original: "EX GRAECO, NVPER IN LATINVM CONVERSVS". While the source is Latin, this title page announces the first major Renaissance translation of Heron's ancient Greek mechanics into the scholarly language of the 16th century.
Two horizontal bands of decorative typographic fleurons arranged in a symmetrical scrollwork pattern.
A "privilege" was an early form of copyright protection granted by an authority.
Pope Gregory XIII, best known for the Gregorian Calendar, reigned from 1572–1585.
A circular printer's mark or seal at the bottom of the page containing a central fleur-de-lis surrounded by an illegible Latin inscription within a circular border.