The only SE razor I have in my collection so far is an Enders razor. Not the Enders Speed Razor, but one of the pre-lawsuit Enders "by Christy" razors. So, from somewhere around 1935. Today I got a pack of Speed Razor blades in the mail, and I decided to do the unthinkable: open and use a vintage blade. As it turns out, my blade had a little rust on it, but none on the edge. So I figured I'd be safe to shave with it. I lathered up with my cheapo VDH lather and brush and set to work on my face. It started a bit rough, but got smoother about halfway through the first pass. Not the closest shave I've done, but not bad for a proprietary blade from who knows how long ago. I'll attach some photos of the razor and blade, but I didn't do any before/after shots of my face.