Got 200 of these of E-Bay, seems that Jewell no longer make Razor blades for DE use only for Cutting Tools, will let you know how they go, they do pop up on E-bay now and again...
I managed to pick up 250 of the Platinums last week for $19.99. They haven't arrived yet. I figured that most vintage blades are pretty good so at that price it is what you'd call a bargain.