Haon

Good evening. This question came to my mind a few days ago, when I was researching the measurements of an antique tachi, the Koryu Kagemitsu. As this blade is now 700 years old, I was wondering if the measurements that can be found in magazines and on the Internet are mostly true to the ones it had when it was forged. Im aware that the sword was shortened, and I'm also aware that blades with severe damage from fights or accidents would need a different way of polishing than just an "update" of the existing polish. For example, if the blade has a current motokasane of 7mm and motohaba of 30mm at the hamachi, would it be realistic to assume the original measurements were a motokasane of 8mm and a motohaba of 31 / 32mm? Best regards and a happy new year PS: I'm not sure if this is the correct section to post this question in. If not, move the thread or message me, please.