Hello All,
I am posting this to try and understand your process. Let's say that you are evaluating this item for purchase:
http://www.ebay.com/itm/y-3-Japanese-sw ... 51b78d83ae
Granted, you might choose not to buy from ebay, but for the sake of the discussion, we will. You have only the images present to work with, and cannot perform an in personal inspection prior to purchase. How do you evaluate the item? What is your method?
Given that this is supposedly the work of a Bizen smith of note, how do you verify its authenticity? How do you date it?
My only reference book at this time is, "The Samurai Sword - A Handbook", by John M. Yumoto, and I'm in the process of building my body of knowledge, but I'm interested in your thought process here.
Kind Regards!