The oldest complete book at the library is an early German translation of the Roman writer, Lucius Florus, entitled Titus Livius, und Lucius Florus Von Ankunft und Ursprung des Römischen Reichs (published in Strasbourg in 1575). In English it is known as the Epitome of Roman History.
The oldest *page*(also known as a leaf)is from Polycronicon printed by Wm. Caxton (1482). Both the book & leaf are in Archives & Special Collections.