Original 1st printing 4&1/4 x 5&3/4" concert/event pass (item was presented for admission to the boat) for "A Pirate's Ball", a free Hells Angels (New York City chapter)-sponsored boat cruise (aboard the "S.S. Bay Belle") around New York City on 9/5/1973, featuring Jerry Garcia & Merl Saunders (with John Kahn and Bill Kreutzmann) appearing with Elephant's Memory, Mission Mountain Wood Band and Bo Diddley. 

 Designer unknown, thin flat stock pass is in mint/near mint to near mint (A/A- to A-) condition; a VERY sharp/clean example of this HISTORIC (and quite hard to find) early-'70's Jerry Garcia piece, as this event featured the very first public appearance of Jerry's Doug Irwin-designed "Wolf" guitar". Check out footage of the event (from the movie "Hells Angels Forever") HERE:

https://www.youtube.com/watch?v=wdPlApXtcNI