Präcision Compass / Technical Drawing Kit - VII.P. made in Austria

This set looks VERY MUCH like the "E.O. Richter" sets, but it lacks the Richter name on it...

I would love if someone could figure out this mystery and tell me what brand/manufactorer this is, and potentially what it might be worth...

More photos: https://imgur.com/gallery/P7MGsxj

Thanks