Extremely rare, mid-1970s, sustainer pedal (which may have been) designed by engineers related to Colorsound/Sola Sound. It is also identical to the Orange Sustain and the Futuristic Sounds Sustain, they all share the same pcb/circuit "D1087/2".
09/27/2020: ToneHome is looking for an Ibanez CS-505 narrow box first issue with flying finger side graphics. Any lead is highly appreciated. Other than that we're looking for an Ibanez AD3000 Professional Analog Delay & Multi Flanger. Please submit your offers or leads here: e-mail