Cynicalman drawings by attendees of the 1985 Chicago ComiCon.
There may be more contributors than listed above.
Generally speaking, Not Available printings beyond the 1st have a datestamp on the front or back cover which is the printing date of the batch that copy was from. Matt Feazell says those post-1st printings were usually 60 copies or fewer.
1st printing appears to be July 1985.
Other known printings:
April 30, 1986