Picked up a Stanley #4 type 16 at an antique store this summer.
It was in pretty good shape outside a bit of rust and orange paint. (Why do so many planes have misc paint on them?). The japanning was in good shape.
I decided that I like the look of some of the gray left over as opposed to a sanded, wire brushed, or polished look. It seems to keep a bit more of a patina look without the rust.
I sanded down the knob and tote and applied Watco Danish oil.
I’ve got a few more coming but they aren’t quite done yet. I started using them prior to finishing up the restore.