The video below has Son House talking about his memory of Johnson. It is the sound of Delta Blues.
And the Son House guitar you'll see?
"This looks like a 1934/35 National Duolian or Triolian resonator guitar, judging by the 14 fret clear fingerboard and open headstock (1933 models were 12 frets clear of the body, and 1936 models had a solid headstock)."
according to YouTube commenter hippyhay1.
Frankly, who would disagree.
