I gave that issue a lot of thought, and the satin finish from scotch brite is probably the closest youll get to original. The thing is, I am unsure if the direction of the rubbing will show on the result. Give that consideration.
A little less original but much less sensitive finish is to oxidize the metal after you get the satin finish done. This will give it a dull gray color, and much less likely to show swirls and scratches. Google it, its pretty easy.
Good luck!