The Vexillation

[Flavivs Aetivs]

You raise some good points Antiochus, and yes in this case the Justinianic papyrus is accurate, as IIRC it does list what the number is rather than pay rations.

However, even if it listed pay rations that would be fine, because unlike the Elephantine Papyrii from Diocletian's time where we have to extrapolate the numbers, in Justinian's time we have lists of soldier's stipends and pay, meaning any estimate based on them would be far more accurate for a 6th century Papyrus.