Who is this emperor?

[Nathan Ross]

It not Titus or his brother.

Why not? :???:

I personally believe it's the latter, but the museum thinks it's Domitian.

Identifying imperial statuary is an interesting business. There's certainly a characteristic Flavian 'look', just as there's an obvious Antonine or Severan one - more than just the hairstyles or the facial features, it seems that each dynasty (for want of a better word) consciously developed their own visual style. Perhaps just fashion, but it certainly would have helped their subjects, particularly in the provinces, build up an idea of the continuity and stability of rule.

Actually, is it not possible that early portrayals of Domitian were deliberately intended to resemble both Titus and Vespasian? As Domitian ruled for sixteen years and Titus for barely three, it seems likely that far more statues of Domitian were produced than of Titus, albeit most of them were smashed or slighted after his murder...