WSH is a Solingen based cutler that makes razors, pedicure sets, scissors, cooking knives, etc.
Here is their company website. Home - wsh cutlery

I've only sharpened one of their newer blades and I was not impressed. The metal was really soft. It honed up quickly, but it wouldn't hold an edge. It felt like it wasn't heat treated at all. The guy that owns it found that if he CrOx stropped it before every shave, then he could get a good, consistent shave with it.

His, also, had some issues with what I would call finishing quality. There were some imperfections in the grind on the tang, the pivot pin was loose, and the heads of the pin were not evenly round.

So, I've only worked with one WSH, and I was not impressed by it.

As for yours, I'd have it professionally honed and maintain it often with a CrOx strop, barber hone, or finishing hone.

Good luck.