I recently purchased a "NOS" AT155LC replacement stylus from one of the online retailers (not ebay) and found through macro photo analysis that it is the genuine article. Definitely a Shibata Linear Contact needle tip. So there are still genuine stylus replacements available. I linked the pictures I took below.
[URL=http://s1313.photobucket.com/user/footsurg/media/AT155LC2_zps56076300.jpg.html][IMG]http://i1313.photobucket.com/albums/t546/footsurg/AT155LC2_zps56076300.jpg[/IMG][/URL]
[URL=http://s1313.photobucket.com/user/footsurg/media/AT155LC1_zpsc54f5330.jpg.html][IMG]http://i1313.photobucket.com/albums/t546/footsurg/AT155LC1_zpsc54f5330.jpg[/IMG][/URL]
[URL=http://s1313.photobucket.com/user/footsurg/media/AT155LC2_zps56076300.jpg.html][IMG]http://i1313.photobucket.com/albums/t546/footsurg/AT155LC2_zps56076300.jpg[/IMG][/URL]
[URL=http://s1313.photobucket.com/user/footsurg/media/AT155LC1_zpsc54f5330.jpg.html][IMG]http://i1313.photobucket.com/albums/t546/footsurg/AT155LC1_zpsc54f5330.jpg[/IMG][/URL]