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After being deported from Theresienstadt to the Auschwitz concentration camp in 1942, Karel Bruml wore this cap as a forced laborer in the Buna synthetic rubber works located in the Buna-Monowitz section of the camp.
![Karel Bruml's concentration camp cap [LCID: 1998wr96]](https://encyclopedia.ushmm.org/images/large/bebc4ac4-bd14-4d5f-ab59-f9ccd3e1d391.jpg)