Some of you might remember this from http://straightrazorpalace.com/aucti...-too-much.html
Plenty of elbow grease and #180 grit to start off with :
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Black rust is never good, but I'm happy to say it's not insurmountable and the blade is salvageable
I'm going to work my way up to #2500 grit and see how it turns out.

Bongo