I have the same finish, with silver keys (not sure if you have this finish or the Raven with the black keys) But I can never get the silver key Clean. They get these dark smudges on them, esp the 3 on the side High E,Alt C,Bb keys. I bought it used and the Thumb Rest looks similar but worse. Is it just the top layer of the Silver Wearing off? Maybe I am seeing the next coating? Overall, I am the say way. It's so freakin Pretty!!! I love my new sax. My old sax was a 6M 1949 Conn. no laquer left on it. Lovely sound, but not lovely.