all the markings are raised
To me this looks like casting markings.
This was a scope bar for a for a military rifle made somewhere between 1950 and 1957, possibly later.
The military demilled stuff all the time and these were no exception. The cut the tips off and wacked the with hammers which bent them up good.
Long time ago I has someone asked me to straighten about 50 of them. I laughed and said they would snap. Initially I heated some of the worst and sort of straightened. Being still wavey I hammered them flat. Tweaking by putting in a vice and leveraging them till they were straight.
I also machined the tips and brazed them on.
They are ferrous and took brazing quite well.
But not so sure iron, maybe cast steel?
I did find Kraeuter, but noticed the vast majority of stuff did not look cast unless early wrenches were cast?
but if cast iron, would they hold up?
The next thing that I questioned was why have the W in hex marking as well?
I looked under a magnifying lens and this is what I think is what it looks like
Kreauter did have WW2 and Korean era contracts, but so did a great many tool companies, and many made things other than tools as well.