late roman vexila/um

[Salvianus]

John, do you have said written accounts references so I can look them up?

Thanks

Paulus thanks

I believe the main reference is Eusebius' L:ife of Constantine:

"A tall pole plated with gold had a transverse bar forming the shape of cross. Up at the extreme top a wreath woven of precious stones and gold had been fastened. On it two letters, intimating by its first characters the name of Christ, formed the monogram of the Saviour's title, rho being intersected in the middle by chi."
Eusebius in Vita Constantini The Life of Constantine Book I, trans. Averil Cameron, Stuart G. Hall, (Oxford, Clarendon Press, 1999) p. 81.

I've also seen 'pole' translated 'spear' - I'll see if I can find the Latin to check.