Alternate timeline
(covers information from an alternate timeline)
The Sh'Rel was a Vulcan T'Plana-type starship that was in service during the mid-23rd century of an alternate timeline.
In 2259, the Sh'Rel was under the command of Captain Spock, who, that year, contacted the UEF Enterprise to formally request assistance in the Vulcans' war with the Romulan Star Empire. (SNW: "Tomorrow and Tomorrow and Tomorrow")