Search:

To establish a new bevel and work out some minor imperfections, you can use 600-1000 grit wet sandpaper before going to the 4k.

This one looks like it might clean up by using a Dremel, felt polishing wheels and their red polishing compound. I've had great results with those. If they don't have much of an effect you may have...

It has moderate hone wear, but nothing serious -- it should give you decades of good use. The fact that it has been honed so much is also encouraging b/c it indicates that it was an effective shaver....