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Bolt in Tun Court, Yard
   South out of Fleet Street at No.64, between Whitefriars Street and Bouverie Street (L.C.C. List, 1912).
   First mention: Horwood, 1799.
   Former names and forms : "Bolt and Tun Yard," 1642 (H. MSS. Com. Beaulieu MSS. p. 146). "Bolt and Tun Alley," 1644 (L. and P. Chas. I. XXIII. p. 666). "Bolt and Tun Court," O. and M. 1677). "Bolt in Tun Yard" (O.S. 1875).
   See Bolt and Tun Inn.
   Now used as entrance to L. and N.W.R. booking office for parcels, etc., but the name is retained.

A Dictionary of London. . 1918.