【New, Unused】Hatsumitsu Dai-iri Kanna Plane 60mm Carpenter's Tool

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Hatsumitsu Da-iri Kanna (Planing Tool) - 60mm - Carpentry Tool

This is a long-term inventory item from my family's business that has since closed. Due to age, there are some signs of dirt and rust, but it is still usable.
I am not very familiar with how to use it.

For items with multiple units in stock, the item shipped may differ in its condition of deterioration from the one pictured.

Please understand that this is a used item inspected by an amateur and has been in long-term storage.