GregD

There is a reference to torjiru in Kapps book "The Craft of the Japanese Sword"....rubbing two pieces of uchigumori together and used with prepaired hazuya to aid in starting the polish on a sword.In discussion with a Japanese friend what the term meant it was that simple ....Juice.

Oil quenched Showato.

A section of the blade..

Wrap may be correct...

Have seen this on a number of Nagamitsu blades,forge welded nakago.A way to conserve tamahagane.

AmaHide,WW2 era,usually forged.oil quenched.

YoshiSada

Had this for a while,think this smith(KaneMune) is associated with AmaHide,clearly hada but oil quenched,I always assumed it was barstock.

Ishido TeruHide