I’d be surprised if it were pitted like that from new. However, the pitting is so deep that removing it (belt sander probably needed) would substantially change the profile of the blade, it’ll probably end up noticeably thinner and would remove the bulk of the makers mark, if not all of it.
You could try some coarse wet and dry sandpaper and see if you can remove just enough to look nicer but not go too far. Then move on to medium and fine paper to get a good finish.
Because of the shape and profile of the blade I’d see if I could secure the sandpaper to a slightly convex surface and work the blade over it, rather than the other way around.
Work slowly - you can always take more off but can’t add any material back on!
I’d be surprised if it were pitted like that from new. However, the pitting is so deep that removing it (belt sander probably needed) would substantially change the profile of the blade, it’ll probably end up noticeably thinner and would remove the bulk of the makers mark, if not all of it.
You could try some coarse wet and dry sandpaper and see if you can remove just enough to look nicer but not go too far. Then move on to medium and fine paper to get a good finish.
Because of the shape and profile of the blade I’d see if I could secure the sandpaper to a slightly convex surface and work the blade over it, rather than the other way around.
Work slowly - you can always take more off but can’t add any material back on!