A very folk evening, evidently. Leonard and Squire's LP on Rubber Records, "Broken Down Gentlemen", is very collectable; for the Ripley Wayfarers see here and for Roaring Jelly, here.
Apologies for the woeful condition of this one, which has evidently seen years of hard service on someone's jacket. I expect that originally it looked like this.
This was one of a set of five, one for each member of the band. The others were "The Actor" (Zal Cleminson), "The Punk" (Chris Glen), "The Professor" (Hugh McKenna), and "The Teacher" (Alex Harvey himself). There was also a gig programme/comic book featuring the characters, which I have somewhere...