Times Old Roman, because, you know, it’s old.
We have very few if any actual autograph letters from the Roman era. (There MIGHT be a few words from Cleopatra on one order she gave.)
Bar Kochba’s extant letters shows him to have been a brutal commander (as noted elsewhere in historical texts).
Interestingly, he spells the name Joshua (Jesus) as Yeshua,
the same as messianics do today.