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: December 1, 1983
Other known printings:
February 13, [no year on datestamp]
May 8, [no year on datestamp]