>>64136492
Plenty of hooking and thrusts I'd ssupect, meaning the blade or tang that goes through the shaft can help a decent bit. Then again, it probably isn't for nothing that these are something for the bronze age and early iron age, after which we don't see this kind of attachment any more.

>>64136357
This single illustration seems to be the extent of it.
"Assembled Illustrations of the Three Realms of Heaven, Earth, and Man", Wang Qi, Ming Dynasty, 1609 imprint.
A work which we should probably be somewhat cautious about as taking completely literally.

>>64136760
Are you getting thes emixed up with war scythes, kama, or some such? Ge and ji were mass produced standard-issue infantry weapons in their days.