Almost certainly from the booty collected after the siege of Vienna in 1683 which was repelled by the attack of the Polish Army under King John Sobieski. See Der Karlsruher Turkenbeute, the catalog of the collection of booty from that failed siege, at the Badisches Landesmuseum, #182. Slightly under 3” total length with a finely forged point. The tapered tang rusted. Historic.
