I just added the Bricks of Sachsenhausen Concentration Camp to my gallery as this is an update to my archive. I collected the brick scratchings from Sachsenhausen Concentration camp outside Berlin.
The languages vary from Russian , German through to pornographic Graffiti with dates ranging from the lifetime of the camp in the 1930’s to the 1990’s.
For more details on this camp see https://en.wikipedia.org/wiki/Sachsenhausen_concentration_camp
I will update on more camps shortly and there forgotten and undocumented histories.