20 or 24 pages?
The cover image was taken from a news release in The Fandom Journal #3 (Kevin Collier, 1985). A proper cover scan would be preferable.
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