Sano Supersonic Tube Amp amplifier 1X12 + 2X8 speakers 1967 Black

1967 Sano Supersonic tube guitar amplifier. It has two original 8" Jensen speakers, and one after-market 12" speaker. This rare vintage amp works and sound great. The stand-by switch doesn't work, but everything else seems to work. There was an opening made on the top edge, that was covered with a panel. It has some rough areas of cosmetic wear, but is a very solid amp. No footswitch, but both the reverb and the tremolo work.