Back in 2003 I scanned the ship ID chart and saved it as a 300 DPI High-Res poster.
It was originally on the Atari forums when my user name was "Lostpilot".
I don't know if the ID chart offered here is high resolution because I am playing the game from original discs.
UPDATE: I have converted the file to .PDF and uploaded here:
http://www.mediafire.com/file/zm2ieimymwz/IWAR_Ship_Identification_Chart_300_DPI.pdf
Thanx.