All four specimens seem to be from the same die pair: the three above and the cut-down
Oxford spec., illustrated in
RIC, which
Oxford incidentally acquired from my own
collection about thirty years ago.
It's a surprise to find this single
Victory rev. die standing alone among Domitian's usual four
Minerva types, which were repeated year after year on
his denarii!
The
type itself also has an unusual feature: with her left hand
Victory grasps a fold of her drapery before her stomach, instead of shouldering a
palm branch as she typically does. Moreover with her right hand she holds a branch, not the usual
wreath. According to Schmidt-Dick's Typenatlas, this exact
Victory type occurs only here under
Domitian, and nowhere else in the
Roman imperial coinage (
type f2B/08, p. 129 and pl. 57).