I was mainly talking about this Tsuba that I think isn’t cast.
I don’t see any clear evidence for casting and think that some parts are just naturally corroded over time.
There are many ways to create the iron patina and some may leave a surface that could me misinterpreted as looking casted.
I have read the part about casting from Dr. Lissenden.
So the idea is that making it the „traditional“ way was too Labour intense, but I think that was very cheap.
How much more charcoal and people would be needed to get the iron to melting temperature that generates additional expenses.
So I cannot really say what would be the cheaper way of making them.
At some point I stopped following the thread and just want to say something because the NBTHK papered Tsuba looks not cast for me.
http://www.ksky.ne.j...umie99/episodes.html