OK the sword is off the grass. I've got lots of studying to do.
The habaki appears to be soldered together. In my youth I remember it was a brass or copper color, never foiled or shiny. Some of the spots of discoloration is the green color that copper gets.
Theres no sign of a tatty leather saya cover.
So can I wipe it off with mineral oil using a microfibre cloth, or must I use tissue?