I am curious about the age of Shinsa papers and how they may be viewed by high end collectors and those with deep knowledge. With extremely deep knowledge I am assuming the blade speaks for itself to the person examining it. If Mumei there could of course be questions on school, smith, age, etc.
If a blade is Mumei, high polish, Juyo, but given that certification in the early 1970's - does that in a sense "invalidate the paper" to a degree - not completely of course. I mean would a buyer who values these higher end blades see an older attribution as being "not as desirable" as say a 5 year old attribution.
How would that effect the price from a dealer if at all?
I seem to see Juyo blades often have older attribution on certification.
How do those of you who are looking at high end blades approach them? - ESPECIALLY if its a blade that cannot be seen in hand!
Thanks!!