Billy J. Kramer and the Dakotas
Below, pictures from the T.A.M.I Show, 28th-29th October, 1964, Santa Monica Civic Auditorium, California, a thin-edged AC100 bass and two AC30s used by Billy J. Kramer and the Dakotas and Gerry and the Pacemakers. The Rolling Stones had their own gear.
Singing their hit (a Lennon/McCartney composition) "From a Window", on the TAMI show, December 1964, with Gerry and the Pacemakers, below
BASS flag on the speaker cabinet just visible.
The striking thing about the amplifier section is its rather stretched grille cloth, resulting in some bendy diamonds lower right. So far it has not been possible to identify this amp in other pictures or among the survivals (though two have lost their original box, and two have been regrilled).
Below, the well-known publicity picture of Billy J. Kramer and the Dakotas with an array of Vox equipment as printed in "Vox Teen Beat" magazine, no. 1, late March or early April 1965, though the shot was taken a little while earlier - late 1964 in the United Kingdom. This picture regularly features in Vox catalogues, brochures and so on. One also finds it as a framed print, part of a set supplied to dealers by JMI and Thomas Organ in 1965.
As can be seen, the thin-edged AC80/100 on end is actually the one used by the band (along with Gerry and the Pacemakers) on the T.A.M.I show.
As ever, compare the arrangement of diamonds on the grille cloth.