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This is shinto katana in original koshirae which needs reparation. Whole koshirae ages to Meiji period, katana is probably a little older but still shinto. Polish is originall, too. There is no signature on the nakago. The blade has visible marks from battle on its surface.

Katana_shinto_mumei_in koshirae_before restauration_Meiji period_blade_originally polished_hamon