Hello gentlemen!   Here is something I purchased ( again!) I have plans to try rewrapping tsuka. For this purpose I was looking for inexpensive, trashed koshirae. So I bought one. With closer look, all fittings, despite being in dirty condition, look not so bad. I might try to clean them also. My question is: In your opinion is it possible to clean all fittings (advice, tips)? Maybe restore golden guilt? As always I would be very interested to find out about motifs, poss