Thanks BigG, Battara,
Here is the ole warrior restored.
Both sides of the blade now cleaned, collar and butt cap also cleaned and the wood oiled.... came up a quite nice
The collar looks to be Suassa with the brass/gold/copper tones
The Butt fitting retains a green patina after a very good clean.
Seeing how well it came up, given the time, I might just get in to that Yanyuedao.
Gav