what type of metal and how to restore it?
I am restoring a 1940's home. the metal door hardware is really dark and I want to polish it to original luster. I have glass or crystal knobs with brass connectors(these clean up easily)but the plate is a different metal. It is in an art deco design, fan shape. It seems to be a thin pressed plate so I am presuming it is not brass, the back is a grayish brown color. the front has lots of little lines and grooves in it but I was able (after alot of elbow grease!) to uncover a brassy spot. Should I assume these are brass plated? My concern is if they are only plated, will I be damaging them with all the rubbing this will take to bring back the brass shine? I don't believe I could even hand rubb all these, they are really tough. Is there a tried and true methoid of restoring this metal? could I be doing something wrong? Anybody have any experience with this? thanks for your help!