just a rookie

@Jussi Ekholm @Franco D Thank you so much, I will send this question via my friend in Japan and I will leave his opinion when my friend see him.

@Jussi Ekholm Thank you so much Jussi. Me too, never seen " Ko- Nio" as well. But Tanobe sensei mentioned about "Ko-nio" on a friend's sword and I saw another example of Nio blade that has a Sayagaki from him, he stated that it is a Nio and the jidai is not later than nanbokucho period. So, that is why I think it is a bit confusing about the classification.

I have some question about Nio school. Can anyone here please educate me about this? There are 3 classifications of Nio school. Ko Nio - The beginning of Nio school, middle to the end of kamakura. Nio - the beginning of nanbokucho till the end of nanbokucho. Sue Nio - Early years of Muromachi until the end of Muromachi. Am I correct? Thank you in advance!

@Nobody the first and second is very hard to translate, thank you

looking for a translation, thanks in advance.