
Managing Editor in Chief
Vienna, Austria
Sam Cowell will begin his doctorate studying 13th century Balkan and Anatolian coinage at the Universität Wien in the upcoming semester under supervisors Dr. Nikolaus Schindel and Dr. Johannes Preiser-Kapeller, in conjunction with the Österreichische Akademie der Wissenschaften. Sam has numerous publications including the ‘The Fourrée Hyperpyra of John V Palaeologus’. He has presented lectures at institutions including the Oxford Centre for Byzantine Research. Sam also serves as director of Numismatics for L5. He obtained his bachelor’s at the University of Tennessee and his master’s at the Wirtschaftsuniversität Wien with the thesis titled ‘Thirteenth Century Byzantine Economic Activity: Analyzing Logistical Networks through Geographic Information Systems’. Forthcoming publications include a chapter in the Moving Byzantium series titled ‘Reevaluating the Arta Mint and Epirote Coinage of Michael I and II Ducas: Numismatic Evidence for the Imperial Pretensions of Alexius III in ‘Exile’’.

Managing Editor
Brussels, Belgium
Nick Vaneerdewegh is the Conservator of the Department of Coins and Medals at the Royal Library of Belgium (KBR, Bibliothèque royale de Belgique / Koninklijke bibliotheek van België), which houses the country’s largest numismatic collection and the renowned Tetradrachm of Aetna. Nick has published on the iconography of Roman imperial and provincial coinage, particularly the Alexandrian series. He likewise specializes in Ptolemaic papyrology. Nick holds an MA in Ancient History and an MSc in Policy Economics from KU Leuven where he is also affiliated as an independent researcher, working on topics related to Graeco-Roman Egypt and ancient numismatics. He is currently pursuing a PhD on Roman Egyptian coinage, with his upcoming article focusing on the religious significance of Roman coin types scheduled for publication in 2026.

Managing Editor
Milwaukee, USA
Jack Koziol is the CEO of L5 and the founder of Infosec, a cybersecurity SaaS startup. L5 represents a new, academically inclined numismatic platform focused on both the proliferation of learning and the facilitation of commerce. Combining the aspects of forum-based discussions with those of a marketplace, L5 unites dialogue, education, and business. Through L5, Jack integrates numismatic practices dating back centuries with the cutting-edge technologies of tomorrow to unite two fields traditionally separated. He also serves on the Advisory Board of the American Numismatic Society (ANS) and is the Entrepreneur-in-Residence at the University of Wisconsin–Madison. Beyond his operator roles, Jack advises the next generation of AI startups as a board member across several early-stage companies.

Managing Editor
Oxford, England
Nathan Websdale is a DPhil Candidate at the Faculty of History at Wolfson College, University of Oxford. His research is supervised by Dr Ida Toth having previously graduated from the MA Late Antique and Byzantine Studies course at King’s College London. In the final writing up stages of his work, Nathan’s thesis (Panspermía and the Romaíoi: Performative Ethnicity and the Weaponisation of Space in Byzantium’s Post-Imperial Networks, c.1190–1235), researches the representation and distortion of ethnicity amongst the various Greek and Slavonic-speaking splinter states formed before and after the Fourth Crusade. As part of that work he is the lead organiser of the OCBR funded project, ‘Epiros: The Other Western Rome,’ connecting alternative narratives of the Balkans for which the forthcoming volume is expected in 2026. His work was awarded the Tsiter-Kontopoulou Short Visiting Fellowship at the University of Vienna which he took up in April of 2025.
ANF Contact Information:
Sam Cowell
Managing Editor in Chief
Vienna, Austria
SCowell@ArsNummorum.com
Nick Vaneerdewegh
Managing Editor
Brussels, Belgium
NVaneerdewegh@ArsNummorum.com
Jack Koziol
Managing Editor
Milwaukee, USA
JKoziol@ArsNummorum.com
Nathan Websdale
Managing Editor
Oxford, England
NWebsdale@ArsNummorum.com
For submissions or general questions, please email Info@ArsNummorum.com