I actually just purchased this blade from ebay. Here is the link.

POLISH RAZOR FROM WAPIENICA WITH MARK ORIGINAL BOX NOS! - eBay (item 320480387488 end time Feb-11-10 19:55:00 PST)

I think for a pretty good price. Since this is my first ebay purchase and I've been looking for a 1/4 grind to try and heard good things about the wapi i am pleased. The stamp in the tang is a bit messy and I wondered whether those who do restorations etc would be able to tell me if there was a way to clean that up, it looks pretty permanent. What is it? (That corrosion on the bottom of the stamp. Thank you.