Original 1st printing 11 x 17" concert poster for the Grateful Dead appearing with the Bonzo Dog Band at the Boston Tea Party (15 Lansdowne Street location) in Boston, MA from 10/2-4/1969. (*according to Deadbase, at least one show also featured Doc Watson)

 Art by Eric Engstrom, medium-thick flat index stock poster is in near mint to excellent (A-/B+ to B+) condition; there are a couple of tiny corner-tip bends/edge dings and pin-prick spots in the upper left/right margins/corners, along with a small pin-prick mark (stain? press hickey?) in the lower left margin and that's pretty much IT... a STUNNING example of this EXCESSIVELY scarce 1969 Grateful Dead poster from the Tea Party.

 This is only the SECOND one of these that I have seen in 29 years.