I cannot understand on one point. How can he specify the era as such a narrow span without identifing the specific smith?
This is a mere question of a beginner. :?
Some shapes clearly point to a specific era based on the appraisers experience. The remainder of kantei then moves on to other factors such as jigane, jitetsu, hamon, and finally boshi. So, its quite possible to pinpoint the era without reaching a conclusion. In the end it's an educated opinion.
fd
Thank you fd.
I generally understand the Kantei procedures. But I still wonder if it is possible to specify only 17 years span of 500 years before only from physical appearances. :?