Small Water Color Paint Set Unused campsite I am not sure what

I am not sure what it was originally for

they came from the warehouse of a store that went out of business years ago

Limited quantities in stock

The bottom of the can shows some very old signs of charring from a fire where the water had been boiled

Small Water Color Paint Set Unused campsite I am not sure whatPeriod German water color paints set in good condition. The front of the tin is embossed "Original Wilh. Ostwald." The paper instructions have become stuck to the water colors but everything appears unused (even if it may be a little melted). There were many soldiers with artistic leanings creating artwork at the front. I doubt I will find another in this condition; these are normally used up and rotten when I do find them. It is about 3 1 4" x 2. 25".