There are lots of parts available on BrickLink in "special colors," especially from MAGICBRICKS and Old Lego parts & sets, both of which are located in Schleswig-Holstein, Germany. Are these prototypes? How do these come into the hands of collectors? There is also the blue Knight visor: http://www.bricklink...&itemID=8113490
Thanks! PM me or post please if you have ANY help or advice or knowledge! Thanks a lot!
Dylan