Maybe air force? Here's a colour comparison.
I pretty sure those buttons are Norwegian.
I agree-looks like Norwegian Air Force to me as well. Swedish would have the 3 crowns on them.
"Much that once was, is lost. For none now live who remember it."
Thanks, I took a better look at the bottoms and on the backside it is stamped (hard to see) something like ''cornelius Oslo''.
Then it must be Norwegian army !
Again thanks a lot for your help.