If you can tell if it is a knock-off or the real deal, that would be great, thanks!
Besides the cast-in okrasa logo, the above star with (I suspect) Alfing writing below it is pretty conclusive its original.
I also suspect its cross-drilled like original, which new chinese cranks don;t have afaik.
These were truely forged cranks, made by a upper end quality german small-batch specialist crank maker.
It would make for an awesome turbo engine crank