I emailed Revisor to ask them if they can do any grinds besides full-hollow, and got this response, which I thought might be interesting to SRP:

50 years ago there were about 700 hundred manufacturers of straights in our city, with hundreds of scilled
hollow-grinders, now in the hole town you will find 3 men which learned it 50 years ago. 2 of them will stop
their work the next few month, both over 75 years old. So we have only the time to produce one kind of grinding.

I hope you will understand what try to explain.

Yikes. I wonder what exactly this means. Presumably at least Dovo needs several blade-grinders on staff? If not several dozen? I wonder if the one remaining he refers to is Heribert Wacker. I also wonder who these two retiring guys are....