I think, that it took my axle 55 years to corrode that much, that it finally broke. I'd almost like to say: It's okay after such a long period of time.
Amazing is, that the ring, which holds the bearing in place was welded to the axle. Maybe they did that at the factory or it's a replacement axle. I own the car for 29 years now and know, there was no work on the axle during that time. And I've got all the documents, bills,... from the first 2 owners - including a ticket for excessive noice from the early 70s. And there was nothing as well.