Large Water Color Paint Set Unused

Period German water color paints set in very good condition. I have been finding these for a long time but they have all been trash until I found this one. It is completely unused. It looks like it may be missing some brushes and there is a bit of light rust on the case, but it is really remarkable to find one like this. There were many soldiers with artistic leanings creating artwork at the front. I doubt I will find another in this condition. The lid doesn't close very well, which seems normal for these. It is about 9 5/8' by 3 1/2'.