Got my first razor; an old Kamisori from ebay, any advice for restoration?

[Jase]

http://i.imgur.com/sFwgk.jpg
http://i.imgur.com/QWyq7.jpg

The files were too large for two of them, that's why I linked instead of inserting the image. From what I read the main thing with Japanese razors is that they maintain the curved blade, which this one does. Though I'm not sure if it should be more or less curved than it is. For these old blades is it acceptable to bring them to a mirror finish or do I want to preserve the patina?