Ginnanho-Yari 銀杏穂槍, Tounshi Kanemitsu 騰雲子包光 signed, Late Edo period

Ginnanho-Yari with an unusual shape.
Ginnanho-Yari are not intended for stabbing, but rather for striking through armor to deliver impact, so their tips are intentionally blunt rather than sharp.

Signature : Tounshi Kanemitsu
Nagasa : 122mm (4.80 in.) 
Sori : 0mm (0.0 in.) 
Total length : 680mm (26.77 in.) 
Motohaba : 18.2mm (0.72 in.) 
Sakihaba : 20.6mm (0.81 in.) 
Motokasane : 9.2mm (0.36 in.) 
Sakikasane : 9.3mm (0.37 in.) 
Blade Weight : 159g
Total Weight : 338g