Wooden Go board with navel and legs, Go stones set

Wooden Go Board with Navel and Go Stone Set

Selling due to clearing out my in-laws' house.
My father-in-law received this from his uncle, who said it was a high-quality item (though I don't know if it truly is).
It's likely from the early Showa 50s (around the mid-1970s).

This listing includes the Go board and Go stones: 190 white stones and 190 black stones.
Both the Go board and stones show signs of use.
The Go stones have scratches, stains, and a few chips.
Please check the photos.

【Size】
Width: Approximately 43.5 cm, Height: Approximately 22.5 cm, Board Thickness: Approximately 10.5 cm
Go stones: Width 22 mm x Thickness 5 mm (see photos)

This is a used item stored at home, so please understand this before purchasing.