Pole arm with sun, moon and stars makers stamps.

[fernando]

I would also (humbly) go for the weapon possibility.
One thing that i would like to have clarified is the reason for that slot head screw on the socket, while this is already secured by the riveted langets; as if the socket was not welded to the said langets and could be (easily) disassembled without them .

[Jim McDougall]

Interesting and astute observation on the slot screw on the socket which seems attached 'over' the riveted langets, Fernando.

The blade form and being attached on a 'pole' is what made me think of the Japanese (and Chinese) 'naginata, though the curious blade markings and unusual fullers made me think European.

The squared rivet heads on the langets resemble European types and arrangement, much as on many lances.

[Philip]

Originally Posted by Jim McDougall

The blade form and being attached on a 'pole' is what made me think of the Japanese (and Chinese) 'naginata, though the curious blade markings and unusual fullers made me think European.

The blade details (look also at cross-section, bevels, and the manner of fullering) are distinctly different between this, and the Asiatic examples you cite. Close (in profile) to be sure, but not a cigar. Also, the piece under consideration has a socket and langet attachment, not seen on the Oriental weapons which invariably feature a tang attached in a slot in the shaft by a couple of cross pins or rivets, and reinforced on the outside by a ferrule and hoops.