Hard to say. Money is preferred, but if you find there is no money and you have to go home, any valuable item will do. Salt varied in price as you got away from

Hard to say. Money is preferred, but if you find there is no money and you have to go home, any valuable item will do. Salt varied in price as you got away from the southern sunny coastal areas. The edict you cite confirms the coinage problem. https://en.wikipedia.org/wiki/Edict_on_Maximum_Prices#:~:text=The%20document%20denounces%20monopolists%20and,all%20important%20articles%20and%20services.&text=The%20Edict%20exists%20only%20in,the%20empire%2C%20where%20Diocletian%20ruled https://en.wikipedia.org/wiki/Edict_on_Maximum_Prices#:~:tex....