I just got a George Wostenholm Frameback in the mail. On the blade, it says

The Doubly Carbonized
IXL Lecoultre Pattern
??????????????????

The third line is mostly worn off, but looks like

Made only ?????? Wostenholm & Son

I thought it was interesting that a Wosty says Lecoultre on her, since Lecoultre was, to the best of my knowledge, a French manufacturer of frameback razors. I'll post pics (hopefully) sometime soon.