Mirror universe
Unnamed Emmette-type starships.
Lunar colony assault ship []
For the prime universe counterpart, please see SS Emmette.
The mirror universe ship
This starship assaulted the Lunar colonies in the mirror universe with photonic torpedoes before the introduction of the NX-class of starships in 2151. (ENT: "In A Mirror, Darkly", "In A Mirror, Darkly, Part II")
Seen only in the opening credits for the two part episode "In a Mirror, Darkly" to mirror the SS Emmette in the prime universe, it can be assumed that this Emmette, if that was its name, would use the ISS prefix instead of the SS one, but there is no canon information either way.