The Vergilius Augusteus is a manuscript from late antiquity, containing the works of the Roman author Virgil, written probably around the 4th century.
These letters do not mark divisions of the text, but rather are used at the beginning of whatever line happened to fall at the top of the page.
Only seven leaves of the manuscript survive, four of which are in the Vatican Library (MS Vat.
Due to its great age, it was originally believed that the manuscript was written in the time of Roman emperor Caesar Augustus, hence its name.
In the later Middle Ages the manuscript was kept in the abbey of St. Denis in Paris.