It is a shame that one of these rare prints has been hacked up:
http://www.ebay.co.uk/itm/RARE-2-x-35mm-Film-Cells-Vintage-Star-Wars-1977-Rebel-Briefing-room-/121534059491
http://www.ebay.co.uk/itm/RARE-2-x-35mm-Film-Cells-Vintage-Star-Wars-1977-Han-Luke-Stormtrooper-/121534396423
http://www.ebay.co.uk/itm/RARE-2-x-35mm-Film-Cells-Vintage-Star-Wars-1977-Han-Luke-Stormtrooper-/121534397133
http://www.ebay.co.uk/itm/RARE-2-x-35mm-Film-Cells-Vintage-Star-Wars-1977-Throne-Room-Finale-/121534398071
This one has Luke's blue saber while he is training on the falcon:
http://www.ebay.co.uk/itm/RARE-2-x-35mm-Film-Cells-Vintage-Star-Wars-1977-Luke-Skywalker-Jedi-training-/121534422329
there are plenty more!