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 very good (B/B+) condition; there are pin/tack holes and tiny pulls in all but the lower left corners (plus another tack hole in the top center margin), a couple of light handling dings/thin stress bends/pin-prick surface spots hiding within the image area and a set of tape pulls on the reverse, otherwise fine.

 Great-looking example of this unusual late-'70 Tea Party poster. Weird lineup on this one!