Blackface tone in all its glory. "Fender Elect. Inst. Co.", the one you want. Tube chart dates to September 1964, transformers and chokes all consistent. Before we acquired, there was a complete run through, including new power cord, by the best tech in the Hudson Valley (NY), just a few hours on it since then. Tubes are vintage and sweet. Newr repro footswitch for the Tremolo. This thing sounds great, got the squishy thing that only tube rectified amps deliver. Great platform should you decide to mod down the road. Very good condition for a 54 year old historical gem!