trust me ,i used to work with lead all the time. and it is exactly right what
sgibsoncleaning is saying about gloves, you must listen, never smoke especially roll ups when dealing with lead and also wash hands before eating sandwiches, just think what your doing after hadling it, trust me i've seen someone go through symptoms with dealing with lead.
anyway i know for sure wire wool definitley works, it gives an excellant shine to it, just like it was new, just be careful not to scratch the windows, try using grade 0000 try it, it will probably still work.
kind regards
paul