Interesting enough, the basal reinforcement is off line/out of direction with the spike - a feature normally not found with German and Swiss halberds after the 1520's.
Following actually the archaic asymmetric Late Gothic pattern, it is quite common with Styrian and North Italian halberds of the second half to late 16th century though.
This being in line with the traditional Late Gothic form of the mark adds a further back up to my opinion that you have a Styrian (Austrian) halberd.
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