I have run the images through my translation device, although, the translation is not very good and makes little sense in english. However, through multiple translations of the first image, one set of words that stayed the same each time is "oxygen gas masks". Based on the images of the man in the second and third photographs, it seems likely that this crate was used to store gas masks like the ones seen on the man. The large bodies of text are probably information on the use of said masks.
Hope this helped, although perhaps someone else can give a more accurate translation.