I guess this is 50's, it has the original Hammond oil filled spring reverb that's almost the entire height of the cabinet. Four 6V6 tubes drive 2x 12" heavy duty field coil Jensen speakers. I found this in a church and have never plugged it in or tried to play it. I would want to replace safety parts before doing that, but the people said that it worked when they stopped using it and all of the parts and tubes are here.