The Maymora-class was a type of Vulcan starship that was at least several years old by 2151.
During a conversation with Captain Vanik in 2151, Jonathan Archer once mentioned that he had visited a Maymora-class vessel sometime in the 2140s. (ENT episode: "Breaking the Ice")
In 2165, the Karik-tor was part of a secret fleet, that was intended to reclaim Vulcan for the disbanded High Command, and Administrator V'Las. (ENT - Rise of the Federation novel: Uncertain Logic)