Yari Sei Sankaku

Original yari spear in 20th century koshirae binding.
There are scratches and dirt on the head due to the passage of time.
Original Japanese cut in very good condition, visible hamon.
The yari spearhead signed Yoshishige.
Estimated period of manufacture is late 18th - early 19th century.
The spearhead a rare sei sankaku in the cross-section of an equilateral triangle with three shavings on
each side
Dimensions:
Spear blade: 15 cm