The Headbadge says it was made in W Germany, but I cannot find any brand name on it. It has a cool lugged frame, Weinmann brakes, Sturmey-Archer 3 speed.
the hub is going to date it, there were so many places making the sport frames it is kind of just a generic Austrian sport, if those are 26" wheels not 26 by inch and an 8 or whatever it is generic city bike
That looks like a centrix I can't remember how to spell it crank. I wish I had access to my archived posts. I always forget one that used a globe. Hang on I might have that bike in my other albums