This is a control panel removed from a Hofner bass copy model. The original manufacturer is unknown. I will provide the measurements, so please take a look if you need them. Please note that I have not confirmed its functionality. I am currently restoring it, and instead of the original switching, I've installed a 3-way switch, and the panel is cut from pickguard sheet. *Even so, matching the subtle curvature of the Hofner bass's top panel is difficult. - Type: Control Panel - Functions: Volume, Rhythm, Bass, Treble adjustment - Accessories: None #ViolinBass #Hofner #ControlPanel Thank you for looking.