I love his first album, John Mayall plays John Mayall, which was recorded live in a club in London in late 1964 called Klooks Kleek.
This album was never released in its original form in America. Confusingly, it was included as the second disc in a 1973 double compilation album called Down the Line.... which I found on vinyl recently dirt cheap. The original British release fetches a lot of money.
https://youtu.be/-8UycaLS_Fg?si=CXGpJ_fqU3fZzMli
thx...