Quinti Horatii Flacci de arte poetica opusculum aureum : ab ascensio familiariter expositum
This is a 1500 Latin edition of Horace's Ars Poetica with a commentary by Ascensius, printed in Paris by Thielman Kerver for the Marnef booksellers and Jean Petit, and intended for students and scholars of classical verse. The two pictures are woodcut printer's devices: one is a heraldic shield set among foliage and flanked by unicorns, the other a framed Gothic title border with a large X-shaped monogram and a bird, both showing dense, symmetrical ornament a designer could borrow for emblem or label layouts.

