Join Date: Feb 2014
Location: Central Valley, California
I'm assuming the only one you care about is the recurved one.
It puts me in mind of a somewhat flamboyant machete stuck on a pole, but maybe that's just because of the size of the socket looks like it would make a very comfortable grip. I don't recognize it as a type of polearm, but that's meaningless because there are infinite numbers of things that I don't recognize.
There are carvings in the blade, do you have better pictures of those?
Do you have pictures that better show the pins holding the device to the shaft? They look somewhat ornate, maybe that would give us (and by us I mean someone else) a clue.