Original 1st printing 20 x 15&1/4" concert poster for UK skiffle-rockers Mungo Jerry appearing with Humble Pie (featuring Steve Marriott and Peter Frampton) and Spider John Koerner at the Boston Tea Party (15 Lansdowne St location) in Boston, MA from 10/8-10/1970.

 Design by Ravioli Grafitti Studios (Bob Goldman), medium-thick flat vellum stock poster is in near mint to excellent (A-/B+ to B+) condition; there is a slight vertical scuff mark just to the left of the top center margin, along with a couple of VERY well-camouflaged handling dings, a trace of light surface wear and a small pinch bend/crease along the upper left margin, otherwise it is a SUPERB example of this somewhat odd-looking BTP poster from late 1970.