I found this tune on a very very very old mix tape which I dug out recently, in the version of Mary Coughlan.
There are hundreds of cover versions around of this beautiful blues classic.
This is not a real tab sheet, just a few variations on the melody, feel encouraged to make up some of your own.
Made up of two chords only, though some add a third chord (see variation B)
Has to be played like Alices’ Restaurant: WITH FEELING.