Signed by the manufacturer on the bottom. Bought at a trade show by the guitarist Manny Charlton from the band Nazareth. Bought from his estate sale after his death. No providence at all just a little fact for you… With that in mind, no silly price not factoring that in the cost. It is just a bit of trivia. pedal a little scruffy but works fine. These are quite an odd pedals. Honestly I prefer my phase 90 so selling it as not getting used.