Search:

AHA! What I thought was a 'W' is an 'N'!
Still, it looks like the 'John' has been ground back from the 'Johnson'.
So was 'DULCE' stamped backwards?

The razor is pretty toasty.
All I can think is James Barlow. The C E or E C is backwards...
Seems I see a 'W' under the 's' in James at the end.

The hone may be good. Only time and experience...