Sheffields of unknown origin/I'm so confused....

Bought a couple of blades today. They are both very odd/confusing. Here is the first one: Lead wedge, horn scales, maker's mark ground away long ago, but professionally. The overall picture seems to predate such a grind, though it was done utterly fastidiously if it is a regrind. Anyone have a stamped Sheffield with this basic setup?

http://i433.photobucket.com/albums/q...psc4a0520e.jpghttp://i433.photobucket.com/albums/q...ps9020fd08.jpghttp://i433.photobucket.com/albums/q...ps20b3a260.jpghttp://i433.photobucket.com/albums/q...psd48363d9.jpghttp://i433.photobucket.com/albums/q...psde964221.jpg

http://i433.photobucket.com/albums/q...ps275e4e31.jpghttp://i433.photobucket.com/albums/q...ps0de7fd72.jpghttp://i433.photobucket.com/albums/q...psa5f59529.jpg

This one takes the cake as it seems to be a jumble of time periods. No maker's mark, a profile more in keeping with the early 1800s., the sort of in between ebbing towards later tang, intact vulcanized scales (I THINK they are vulcanized rubber) which is amazing to me as I have never come across them intact, top and bottom jimps, it is pushing a full hollow, has a late 1800s-style tail, and as the cherry on top just says Cast Steel Warranted. I am guessing late 1800s? Just a very odd blade.I'm so confused today.. I've owned/own several cast steel razors so I'll see how it behaves on a stone, but this shouldn't exist!

http://i433.photobucket.com/albums/q...ps3b29a165.jpghttp://i433.photobucket.com/albums/q...psb7f972c7.jpghttp://i433.photobucket.com/albums/q...ps17c28dcf.jpghttp://i433.photobucket.com/albums/q...ps3cb29cc6.jpg

Without a mark, it's impossible to say who made a blade. Too many look too similar (or our knowledge is too incomplete). Both look reground to me, and that quality of regrind is not at all unusual; all the old regrinds that I can remember seeing have been fantastic.

I don't have THAT many blades but I do have 6 or seven that look just like that :<0) All with different names.