On the Equestrian Statue of Tremulus
Here’s some useful bibliography, from a new-ish commentary on the Philippics: I’m sharing it particularly because it supports my strong suspicion that this is indeed also Tremulus on this later type (RRC 425/1; cf. RRC 293/1 illustrated above): Update 2/15/2016: Myles McDonnell makes the point very clearly in a footnote (p. 157):