Search:

As far as getting up into that spine area, you need to have sandpaper attached or wrapped around something of similar shape.
I would get one of those old Erasers we used to use in elementary school,...

Glen that razor is fantastic and what I aspire to in my restorations.
While I agree with what everyone has been saying I would just add that if you can get a pitted old piece of crap for cheap, say...

To me there is no physical difference to light pitting vs etching on a blade. As long as it doesnt affect the cutting edge. Old razors are gonna have wear marks of time. Just like old razor users....