D'Vahl
The D'Vahl was a Vulcan survey ship that was in service with the Vulcan High Command in the mid-20th century. In 1958, the D'Vahl was under the command of Captain Tellus.

In January of that year, the D'Vahl visited Earth to rescue any survivors of a survey ship that crashed there. 

Of the three survivors, T'Mir, Stron, and Mestral, stranded there since October 1957, only two boarded the D'Vahl; Mestral, having elected to remain on Earth, was reported to have perished in the crash as well. ()

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DVahl