1942 年,卡莱尔·布鲁姆(Karel Bruml)被从特莱西恩施塔特 (Theresienstadt) 驱逐到奥斯威辛集中营。此后,他带着这顶帽子,在位于布纳 - 莫诺维兹 (Buna-Monowitz) 分营里的布纳化合橡胶厂强迫做劳工。
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