During her master's degree in numismatics at the University of Vienna, Maya Lerner reclassified the coins of the Roman emperor Hadrian (117–138) from this only partially catalogued collection and entered them into the KENOM online database.

This means that they are now available to all numismatic researchers and enthusiasts worldwide. At the same time, the coins have been linked to the OCRE (Online Coins of the Roman Empire) online catalog, which documents which objects from the standard reference work on Roman numismatics – the series "The Roman Imperial Coinage" (RIC) – are available in Mainz.

The coins in the City Archives provide a good insight into the extensive iconography that was developed under Emperor Hadrian. For example, in the early coins, Hadrian’s emulation of his predecessor, Emperor Trajan (98–117), is evident in the obverse busts and inscriptions. In later coins, Hadrian’s departure from this model becomes clear.

There are also a few representative examples of the so-called "travel souvenir coins," which feature an allegorical depiction of various Roman provinces on the reverse and were created at the end of Hadrian's reign.

Hadrian also had several reverse designs minted that, compared to other types during the Roman Empire, were issued only rarely. These include the depiction of Hilaritas, the personification of cheerfulness, joy, and happiness.

Following the cataloging and online publication in 2016 of the coins in the Numismatic Cabinet belonging to Hadrian’s predecessors, Nerva, and Trajan in the Numismatic Cabinet had been cataloged and made available online by students at Johannes Gutenberg University, another important step toward the online cataloging of the Numismatic Cabinet’s ancient collections has now been taken, thanks to the tremendous volunteer efforts of Ms. Lerner. As a result, the City Archives are also proving to be an important learning resource for students of ancient history.