USS Pershing (NCC-G1400)

USS Pershing (NCC-G1400) was the lead ship and prototype of the cargo drones. It was on active duty in Starfleet during at least the late 23rd. (Jackill's Star Fleet Reference Manual: Ships of the Fleet, vol. 3)

Pershing was commissioned in the 2260s. All other vessels of this class had the nomenclature Pershing01, Pershing02 etc., up to Pershing99.