Hello all, it is just my humble opinion, but I think the lock has more appeal,at least to me, if it is left in the original state as it was found..Any attempt to restore this lock to any kind of respectable condition will possibly upset you as if all the “rust” is removed,,,you will be left with a carcass of sorts & a brass drop..
I’m probably in a minority here, just the way I see it………………….Donnie