The provenance is all hearsay. Rick Harrison would not give you an extra nickel for it. When I visited Terry Hanley’s warehouse in Lawrence MA, I had my picture taken next to the speakers that were used at Woodstock. Those speakers are still sitting unsold in that warehouse as far as I know. The most interesting thing in his warehouse for me was the classic Delta Unisaw, I quickly passed on it after seeing the corner it the cast iron top broken off. The Terry Hanley hearsay provenance for the 26 PL700Bs he had was that these were Aerosmith amps. Interesting but meh.