Original 1st printing 8&1/2 x 11" concert flyer for the Grateful Dead appearing at the Bangor (ME) Auditorium on 4/22/1971. Designer unknown (photo by Herb Greene), medium-thin flat stock flyer is in absolutely fantastic mint/near mint to near mint (A/A- to A-) condition; just a whisper of handling and a tiny pin-prick surface mark at about 3:20, otherwise fine. An overall fantastic-looking example of this VERY unusual regional New England Grateful Dead flyer. Wanna listen? HERE'S the Soundboard: 

http://archive.org/details/gd71-04-22.sbd.clugston.2176.sbeok.shnf