Can yari be dated through kantei?

[John C]

I recently acquired a yari blade in shirasaya and was wondering if it could be roughly dated using kantei?

Are yari styles indicative of a certain period or are the various styles too ubiquitous to determine age?

 

Thank you,

John C.

[Shugyosha]

The one factor that is usually referred to is the length of the kerakubi - the part between the blade proper and the tang. A long kerakubi indicates a koto blade, a short one shinto or later. 

 

I’d guess that the top two pictured here are koto blades whilst the third one is likely shinto: https://commons.m.wi...tegory:Yari_kerakubi

[Jussi Ekholm]

Perhaps you can post pictures and measurements of the item?

[John C]

Thank you both for responding. I was hoping to take a crack at dating the blade using a kantei method, however there is not a lot of info out there pertaining specifically to yari. 

 

Jussi, here is a pick, though it may not be much help. Based on the kerakubi, it's not very old

Nagasa: 4.5 inches

Overall: ~14.5 inches 

 

John C.