Vox part number 09-3204-0. Ferule (eyelet) part 09-3205-0. This tuner was fitted to three bass models produced at the EME plant in Recanati, Italy circa 1967-70: the hollow body Vox Apollo IV, it's non-effects equivalent, the Saturn IV and the solid body Hawk IV. This is a smaller, lighter unit than those fitted to the other EME Vox basses (Stinger, Constellation, Astro, Phantom etc), having a foot print of just 37mm x 25mm, and a 13mm post hole.
List of Vox bass machine heads
$30
$240
$40
$200
$230
$55
$270
$65
$75
£40
£120