Hello Carlos, While I agree with Ian on everything he has stated I do at the same time believe that once this piece arrives and you have had time to give it a little TLC and a light cleaning you might find that all the hilts fittings are mostly silver/silver alloy with some brass accents thrown in. The scabbard as well could turn out to be a silver/silver alloy with brass decorations. This is a most beautiful piece that you have been very fortunate to add to your collection and if I had seen it before the auction had ended it would have cost you dearly.
My congratulations to you on winning this wonderful piece. As usual, if you ever grow tired of looking at it you know that it will always have a home waiting for it with me.
Best,
Robert