This was from the same show as the Superfuzz Bigmuff cover. I love how the bend in Mark’s body mimics the fish on the Schmidt beer can (cheapest regional swill of choice at the time).
That’s Bruce Pavitt, Sub Pop co-founder with his arms in the air. The hand on the beer belongs to the artist Ed Fotheringhan, who would go on to do some of Mudhoney’s Lp covers. - Charles Peterson