Original 1st printing 8&1/2 x 11" concert flyer for Frank Zappa and the Mothers of Invention appearing with Ruben & the Jets and the Wild Thing at the Ark in Boston, MA from 7/7-8/1969.

 Design by Emmanuel, thin flat stock flyer is in near mint to excellent (A-/B+ to B+) condition; really nothing more than a light amount of handling wear/creasing and a stray soft surface smudge or two lurking around the outer edges, otherwise it is a SUPERB example of this MEGA-SCARCE low-run FZ concert artifact from the soon-to-be second home of the Boston Tea Party.  

First one of these that I have EVER seen! Stream the 7/8 show (later officially released as part of the "Beat the Boots" series) HERE:

https://www.youtube.com/watch?v=sOa-StZa88k