Keyboard/Organ volume pedal, believed to be manufactured by Technics but not confirmed.
Korg XVP-10 Metal Expression Pedal for Electronic Keyboard, Volume Control, Grey
Vintage 1960’s Vox volume/expression pedal
Vintage VOX Volume / Expression Pedal – c.1960s – Original Internals – Tested
Volume Expression Pedal Swell Organ Midi Hauptwerk - Organ Organ Concert UK
Korg EXP-2 Foot Controller Volume Expression Pedal Synthesizer Keyboard
Korg XVP-20 Volume Expression Pedal Foot Controller Black
