Which preposition to use with denarius

per Occurrences 4%

In general, what they wanted was to have the period of service extend over not more than sixteen years, and they demanded that they should receive a denarius per day and be given at once his prizes that were in the camp.

at Occurrences 1%

Sulpicianus would have won the day, since he was inside and was prefect of the city and was the first to say five thousand, had not Julianus raised his bid, and no longer by small degrees but by twelve hundred and fifty denarii at once, which he offered with a great shout, indicating the amount likewise on his fingers.

from Occurrences 1%

Once, when a fire destroyed the palace, and many persons offered him large amounts, he would take nothing except an aureus from the various peoples and a denarius from single individuals.

Which preposition to use with  denarius