1240. Natta, De Dei locutione Marci Antonii Nattae Astensis oratio, [Venice], Accademia Veneziana, 1558, twentieth-century crushed morocco

1241. Natta, Marci Antonii Nattae Astensis De Deo libri XV, Venice, Paolo Manuzio, 1560, early vellum

1242. Natta, Marci Antonii Nattae Astensis Volumina quaedam nuper excussa, numero et ordine, qui subiicitur, Venice, Paolo Manuzio, 1562, contemporary limp vellum

1243. Natta, M. Antonii Nattae Astensis Opera, Venice, [Paolo Manuzio], 1564, English brown calf, ca. 1640

1244. Nicander Colophonius, Theriaca, Venice, Heirs of Aldo Manuzio & Andrea Torresano, April 1523, early nineteenth-century French blue straight-grained morocco

1245. Nonnus Panopolitanus, Metabole tou kata Ioannen Euangeliou, Venice, Aldo Manuzio, [ca. 1501], eighteenth-century English tan calf

1246. Odoni, Discorso di Rinaldo Odoni, Venice, [Paolo Manuzio], 1557, nineteenth-century half brown morocco

1247. Olympiodorus Alexandrinus, Meteora Aristotelis commentarii, Venice, Sons of Aldo Manuzio for Federico Torresano, 1551, seventeenth-century French red morocco

1248. Oppianus Anazarbensis, Oppianou Aleutikon biblia pente, Venice, Heirs of Aldo Manuzio & Andrea Torresano, December 1517, seventeenth-century French brown calf, armorial binding of Léonor d'Éstampes de Valençay as Bishop of Chartres

1249. Oppianus Anazarbensis, Oppianou Aleutikon biblia pente, Venice, Heirs of Aldo Manuzio & Andrea Torresano, December 1517, contemporary tan calf, Flemish (?) mid-1540s

1250. Oratores Graeci, Logoi toutoni ton retoron, Venice, Aldo Manuzio & Andrea Torresano, May 1513, contemporary vellum

1251. Oribasius, Oribasii Sardiani Synopseos ad Eustathium, Venice, Paolo Manuzio, 1554, contemporary limp vellum

1252. Oribasius, Oribasii Sardiani Collectorum, Venice, Paolo Manuzio, [1555?], early nineteenth-century vellum

1253. Oribasius, Oribasii sardiani Collectorum medicinalium, Paris, Bernardino Torresano, 1555, contemporary French brown calf

1254. Origenes, Homiliae in Vetus Testamentum, Venice, Aldo Manuzio, February 1503, twelfth-century (?) vellum

1255. Ovidius Naso, Metamorphoses, Venice, Aldo Manuzio, October 1502, nineteenth-century vellum

1256. Ovidius Naso, Ouidii Metamorphoseon libri XV, Venice, Aldo Manuzio, October 1502, Bolognese brown morocco, ca. 1535

1257. Ovidius Naso, Ouidii Metamorphoseon libri XV, Venice, Aldo Manuzio, October 1502, Northern Italian black morocco

1258. Ovidius Naso, Ouidii Metamorphoseon libri XV, Venice, Aldo Manuzio, October 1502, Italian brown morocco, ca. 1510

1260. Ovidius Naso, Opera minora, Venice, Aldo Manuzio, December 1502, eighteenth-century brown polished mottled calf

1261. Ovidius Naso, Fasti, Tristia, and Epistulae ex Ponto, Venice, Aldo Manuzio, (January 1502–) February 1503, printed on vellum

1262. Ovidius Naso, Fasti, Tristia, and Epistulae ex Ponto, Venice, Aldo Manuzio, (January 1502–) February 1503, contemporary Venetian russet morocco

1263. Ovidius Naso, Fasti, Tristia, and Epistulae ex Ponto, [Lyon, Baldazare de Gabiano and/or/for Barthelemy Trot?, 1504–1505?], contemporary binding of a vellum manuscript leaf

1264. Ovidius Naso, Ovidii Metamorphoseon libri XV, [Lyon, Baldazare de Gabiano? 1506?], contemporary French calf

1265. Ovidius Naso, Fasti, Tristia, and Epistulae ex Ponto, [Lyon, Baldazare de Gabiano and/or/for Barthelemy Trot?, 1506?], nineteenth-century English red straight-grained morocco

1266. Ovidius Naso, Fasti, Tristia, Epistulae ex Ponto, Venice, Heirs of Aldo Manuzio & Andrea Torresano, January 1516, Roman brown morocco from Cardinals' Shop, 1520s

1268. Ovidius Naso, Metamorphoses, Venice, Heirs of Aldo Manuzio & Andrea Torresano, February 1516, eighteenth-century calf

1269. Ovidius Naso, Heroides, Amores, Ars amatoria, Remedia amoris, Venice, Heirs of Aldo Manuzio & Heirs of Andrea Torresano, January 1533, Bologna red morocco, ca. 1540

1270. Ovidius Naso, Fastorvm Lib. VI. Tristivm Lib. V. De Ponto Lib. IIII., Venice, Heirs of Aldo Manuzio & Heirs of Andrea Torresano, December 1533, olive morocco by Grolier's Last Binder

1271. Ovidius Naso, Opera omnia, Venice, Heirs of Aldo Manuzio & Heirs of Andrea Torresano, 1534 (September 1533; January 1533; December 1533), early nineteenth-century straight-grained red morocco by Bozérian Jeune

1272. Ovidius Naso, Metamorphoseon libri XV, Venice, Heirs of Aldo Manuzio & Heirs of Andrea Torresano, 1534 (but September 1533), olive morocco by Grolier's Last Binder

1273. Pacini, De tenuis humoris febrem faciente ante purgationem, Venice, Paolo Manuzio, 1558, nineteenth-century vellum

1274. Pagnino, Habes, candide lector, duos tomos Isagogae, Avignon, Jean de Channey, 1525, late nineteenth/early twentieth-century Italian red grain morocco

1275. Palacio, Enarrationes in sacrosanctum Iesu Christi Euangelium secundum Matthaeum, Venice, Biblioteca Aldina, 1571, early nineteenth-century English green morocco

1276. Parisetti, Ad Varium Tolomaeum fratrem theopoeiae, libri sex, Venice, Heirs of Aldo Manuzio, 1550 (1551), eighteenth-century vellum

1277. Parisetti, Iunioris Ludouici Pariseti Regiensis, Venice, Sons of Aldo Manuzio, 1552, eighteenth-century vellum

1278. Partenio, Pro lingua latina oratio, Venice, Sons of Aldo Manuzio, October 1545, modern vellum

1279. Pasquali, Censura animi ingrati lucubratio Caroli Paschalii, Paris, Robert Colombel, 1601, contemporary limp vellum

1281. Patrizi, l sacro regno de'l gran Patritio, Venice, Sons of Aldo Manuzio, 1553, nineteenth-century boards

1282. Paulus Aegineta, Opera, Venice, Federico Torresano, 1553, late nineteenth-century calf

1283. Pausanias, Pausanias Pausanias, Venice, Heirs of Aldo Manuzio & Andrea Torresano, July 1516, seventeenth-century Dutch or German(?) russia

1286. Perotti, Cornucopiae, siue linguae latinae commentarij diligentissime recogniti, Venice, Heirs of Aldo Manuzio & Andrea Torresano, May 1517, Venetian black morocco, ca. 1520, by Mendoza Binder

1287. Perotti, Cornucopiae, Venice, Heirs of Aldo Manuzio & Andrea Torresano, March 1527, eighteenth-century English(?) calf with gilt border

1288. Peto, De iudiciaria form. Capitolini fori ad S.P.Q.R. Libri IX, Rome, Paolo Manuzio, 1567, nineteenth-century English red morocco (possibly Storr of Grantham)

1289. Peto, De mensuris et ponderibus Romanis et Graecis, Venice, Aldo II Manuzio, 1573, French red straight-grained morocco signed F.L.P. Lefebvre

1290. Peto, De mensuris, et ponderibus Romanis, et Graecis, Venice, Aldo II Manuzio, 1573, seventeenth-century vellum

1291. Petrarca, Le cose volgari di messer Francesco Petrarcha, Venice, Aldo Manuzio, July 1501, nineteenth-century brown English morocco (Rivière)

1292. Petrarca, Le cose volgari di messer Francesco Petrarcha, Venice, Aldo Manuzio, July 1501, contemporary black Venetian morocco