Star Wars: X-Wing Vs. TIE Fighter Promo Art (Windows)
Images originally available at: http://www.lucasarts.com/static/xvt/xvtframes2.htm (pages archived by the Wayback Machine).
Images originally available at: http://www.gamesdomain.ru/gdreview/zones/reviews/pc/may97/xvt.html (page archived by the Wayback Machine). The same screenshots were found on LucasArts website, but only thumbnails were archived.
Preview screenshots published on the cover CD of the German gaming magazine PC Joker (July/August 1996 issue). The date stamps on the image files are from 15-19 March 1996.