https://coinsweekly.com/online-conference-coins-from-roman-military-sites/ https://uni-tuebingen.de/en/fakulta...ngen/muenzen-aus-roemischen-militaerplaetzen/
This looks fascinating. I recall the site of Harzhorn having coins of Severus Alexander scattered around, placing the battle's occurrence either late in the reign of the former or during the reign of Maximinus Thrax...