What the heck is in the walls?

[Sophiaellen]

Hi!
Is there anyone here who has any idea what this might be?

I live in an apartment in a house from 1906. The wall is in the hallway and on the other side is the elevator, which was installed later. I don't know when. I've tried to put up a coat rack, but the wall just falls apart. I can't understand what it is.

 

[BirgitS]

Difficult to see anything in the picture. But a house from 1906 might have some type of kloasongvägg, see here: https://sv.wikipedia.org/wiki/Kloasongvägg
If it is a kloasongvägg, you screw into the planks.

Otherwise, it is good to talk to neighbors and the board, you are probably not the first to want to put something on the walls.

 

[Sophiaellen]

Thanks for the answer. When I inserted the screw, it expanded and the wall feels quite damaged.
Considering it's old, should I be worried about creaky material and tape it up/clean it wet, etc?

I need to put down the project and consult with the association, although it usually takes a while to get a response.

 

[BirgitS]

One should not be worried about how buildings were constructed in the past, but it is good to know what is inside the walls so you know what you're dealing with. Is it not possible to call someone on the board/administrator/property manager?
It's not a matter of any official board decision that needs to be made.