Do you just have the photo Hanno or can you get access to them? The date will be stamped into the lid along with the identifying number. Difficult to say with absolute confidence but I agree with Bob that they look like
P. 59
The one with the text showing doesn't have wire clips which i believe might help date it. I think a more solid clip indicates that it is post war while a wire clip indicates its a war/pre war box. You can see a wire clip in the first picture in the link.