*Gibson Maestro Boomerang Sound System Model BG-1 *** Very Early First Version ( BG-1 ) 1960's Boomerang Wah/Vol pedal in great shape with it's Original carrying case with great color and graphics. Pedal seems to have slight wear from light use and also has great graphics and original black crinkle paint with great Patina . Pedal actuates smoothly as it should and limit button and potentiometer pot also works smoothly . has el rad 500mh inductor, All original with transistor Pot and even has original transistor 9v battery included . We did not test as it's all original and did not want to put power to it . If you or someone you know collects Very Original not modified Vintage or Gibson 1960's sound equipment this may be for you . Or maybe if you collect vintage guitars and want an original Wah pedal this may be for you . Currently this is the only Original BG-1 on ebay , If you have any questions , please call or text at a (TWO-03 ) 313-9396. Thanks Rick.