@EgoistJamal not that I know of no. It wouldn't make much sense considering that swords were basically outlawed during the time that the series took place I think. So a European halberd would draw wayyyy too much attention. Plus I don't think Japan was too keen on foreigners during that time period either so seeing a foreign weapon would draw attention. I could be wrong though I don't know the exact details about the taisho period I'm just going off based on what happened when tanjiro, zenitsu and inouseke went on a train and had to bolt from the police because they had their swords strapped on out in the open.