Jacques D.

At that time, Naotane was doing Bizen style (Kagemitsu to be precise). Does this hamon match?

He guys, You should wonder what kind of hamon Naotane performed at that time ...

Exceptionally I will comment on the video posted by Alton. In 33.14 it is said that February and August are the best months for yaki-ire. But in those times these months did not exist and we were talking about the second or the eighth month of a year of an era that did not begin on January 1st of a year. Like what one can be learned and nevertheless say incongruities

This is my last comment on NMB where too much nonsense is said and I don't want to be in it anymore. This shirasaya is not the one to go with the sword.

In this sayagaki Tanobe sensei wrote about Noshu Seki ju Kanemichi and not Mutsu no kami Daido; .......(edited by Admin because Jacques doesn't know how to be polite)

Original Nihon-go No yari here (nagasa 79.2 cm) https://kougetsudo.info/nihongo/

Shinogi zukuri wakizashi (if not suriage tachi) => Muromachi

High shinogi is seen in Yamato and in the schools inspired by it (we find some in Mino) but it is not an absolute rule, we also find some in Bitchu Katayama. However it happens that the nihonto meikan quotes a Noritsune in this school who worked during the OEI era, as the sugata seems to correspond (nagasa, sori, kissaki), it is a possibility. Frankly I don't see this sword being from the Kamakura period.

Shinogi seems high, am i right ?

No oshigata of this smith (very likely not that skilled) in the literature and no examples of his work. All one can do is speculate and I refuse to do that.

Right and in this case yasurime should be takanoha.

This kanemichi is not the founder of the mishina school, the founder was Noshu seki ju Kanemichi whom later signed also O-Daidô so we are not sure if there is one O-Daidô or two and if Noshu seki and Mutsu no kami are the same or not.

During Onin war, peasants became warriors and were the first ashigaru.

I may be wrong, but it seems to me that takeyari are pointed bamboos used as yari (used by ashigaru or peasants)

I must point out that I did not buy it on the internet or from a dealer.