Board Thread:General Discussion/@comment-4957813-20131130185522/@comment-24282510-20140312235608

What are you confused about?

The small one

Meaning the one that is in his left hand i.e. it is not has long has the big one. Hence the term small one. http://img1.wikia.nocookie.net/__cb20140105185514/bleach/en/images/7/7a/Zangetsu_Shikai_Version_3.png

Note the small one in his left hand.

http://img2.wikia.nocookie.net/__cb20130712005708/bleach/en/images/6/6e/542Ichigo_senses.png

See old (Quincy) Zangetsu is standing over the left one which is the smaller one.

the only old (Quincy) Zangetsu was standing over

Meaning the guy that Ichigo thought was Zangetsu. The one that come from [Yhwach].