It is a test item for pole arms and staffs, etc. and can be used with WeaponAnimation: Bash2H, Slash2H, and Pierce2H.
Some animation cycles show the colored halberd on the right side.
I am still figuring out which animations are really needed.
If you see a colored halberd at any point please report it here
One example could be: someone made the fist attack available by command, even though a pole arm is equipped.
Additionally, my little test-server still runs on RunUO 1.0, so there might be some differences i am unaware of
Other things to look for:
Masked out parts
I mostly followed the original item, but changes are possible for the future.
(For example, the attack animation on a horseback could have some potential to be optimized)
It is free to use, enjoy!