score:15
A possible description of the one depicted in your picture (source):
The most popular continued to be the strange dagger-axe. Dagger-axes came in various lengths from 9–18 ft and were now used as thrusting spears with a slashing blade available if needed. The Qin particularly seemed to like the Dagger-axe, creating an eighteen foot long pike version.
This forum has an excellent discussion (and has a larger version of the picture you posted). To pull out some points from that:
... Ji was a very important and versatile weapon of the time, ... combination of ge with a spear.
The rear tang on such late period bronze ge were sharpened to have a reversed stabbing blade, the blade projected down the pole ("hu") was long, even longer than the 'dagger' blade. The # of binding holes was greater than earlier period. The 'dagger' blade also inturned slightly near the tip in the fashion of a true hook.
Such a weapon could puncture and hook and slash. Similar dagger-axes were used in the West Han period for a short time, before being replaced by a very different form of 'ji' which was then used throughout the Han
Upvote:7
There's a National geographic documentary with good visuals of how it's used in battle:
http://www.youtube.com/watch?v=hR4a7uwc5QU
I personally consider it one of the most underrated weapons in history.