> art knife < need some help identifying the maker - Olde English "S"

[les warren]

I have a couple blades purchased at an auction a couple years ago I am researching .
The tags from the auction refer to Kurt Mares, but that doesn't jive with the "s " mark. I haven't been able to find information on the name or mark.
These are both beautifully executed pieces. It seems the maker is highlighting casting skills in The razor and dagger fittings. The fit and finish of these blades is phenomenal.