Yeah-- that's the logo, but I'm talking about a different marking.I believe it's a different marking. I've never gotten a solid answer on what it is, but I think it might be a highly stylized D (as in "Deutsche Werk" which you often find prominently stamped on their guns).
Here's an example from a really crappy interwar .22LR Ortgies rifle I have kicking around at the back of my safe somewhere. Old photo, but I have it on hand and it illustrates the issue:
View attachment 413010
It's a known variant: