Martin loved these guys, and I’m sure they have access to the best weed in the universe with Howard onboard. NB: the reference image was flipped in order to perpetuate certain conspiracy theories.
“The inside cover of the (Hooter Roll?) album depicts a photograph of Jerry Garcia and Howard Wales smoking on an outdoor sofa. The photo is evidently reversed as Jerry Garcia’s missing finger appears on his “left” as opposed to his “right” hand.”
Wikipedia