Indeed, the topography around Mauthausen looks like the scene in said image, but so do thousands of other locales in Germany and Austria or Czechia and so forth.
I'm unfamiliar with the location, I simply wanted to point out the fact that they seem to be the same location.
Maybe Carl might be of help.
I rather think they can indeed be of camp personnel, since there is little evidence of combat on them, but they could also be from a Ersatz Waffen SS unit and
be from the combat arms, as well. I am being a contrarian, since, say, the Waffen SS had a huge rear area presence in Czechia and so forth.
Carl is the man in this kind of thing, as is Mr. d'Alquen and so forth.
This man here likely has a cap with white piping and the brown Waffenfarbe, and he was definitely in service at Mauthhausen.
'I do not think we can hope for any better thing now.
We shall stick it out to the end, but we are getting weaker of course, and the end cannot be far.
It seems a pity, but I do not think I can write more. R. SCOTT.
Last Entry - For God's sake look after our people.'
In memory of Capt. Robert Falcon Scott, Edward Wilson, Henry Bowers, Lawrence Oates and Edgar Evans. South Pole Expedition, 30th March 1912.
Muench's Scream is appropriate for a lot of what goes on in these spaces, that's for sure.
I think its entirely possible that there did originally exist a few brown-piped KZ caps, but I've never seen one I felt comfortable with. I believe colour-piped caps may have been privately procured by some both after and perhaps even before the six month window allowed by the regulations...
The six month "window" as you call it weighs far too much in the contemporary analysis and far too little of the actual rigors of the textile trade at the time,
i.e. the Reichskleiderkarte and so forth.