This first volume of a Catalogue of the Roman Provincial Coins from the Alexandrian Mint in the Graeco-Roman Museum in Alexandria is the result of a long-term Egyptian-Swiss-German collaboration. It contains 2689 coins of the Roman emperors Octavianus/Augustus, Tiberius, Claudius, and Nero (30 BC – AD 68). As the most prolific provincial coinage of the Roman Empire, the Alexandrian coins document extensively the portraits of the Roman emperors, and convey a rich choice of reverse representations, inscriptions, and dates. Since its foundation in 1892, the Graeco-Roman Museum in Alexandria receives and keeps a considerable part of the numismatic discoveries from archaeological excavations and from accidental finds from Egypt. Thus its collection represents an authentic profile of the coin production and local circulation in Egypt during the Roman period.