Hello all!   So, like I stated “I am out of here” on that “Tsuba casting molds” thread.  But I still look at it and there has been an interesting question raised (before and recently) on that thread (I refer to pages 7 and 13 of that thread).   That question has to do with tsuba Yanigata.  The resin or pitch type casts made of tsuba (and other objects).   Pitch is a type of plastic.  It is a “viscoelastic polymer”.   Maybe these tsuba Yanigata were used by