Kar Kantar's ship was an "antique" Romulan Bird-of-Prey used by the warlord Kar Kantar during the late 24th century. This ship operated in the area of space between Daimanta and Vashti in the Qiris sector of the Beta Quadrant.
In 2399, this ship engaged in combat against La Sirena and another ship at Vashti. The Bird-of-Prey was defeated when its starboard nacelle pylon was severed. (PIC: "Absolute Candor")