Oświęcim, Poland (April 30, 2026) – The Counter Extremism Project (CEP) is proud to organize Ground Glass, a new exhibition by Jewish-American photographer Hannah Altman (b. 1995). The exhibition honors the life and work of Holocaust victim Lore Sternfeld (1915-1943), a precision engineer who made camera lenses for Astro-Berlin, the same company whose lenses were used by Nazi propagandists including filmmaker Leni Riefenstahl. Beginning June 21, 2026, Ground Glass will be on view at the former home of Auschwitz commandant Rudolf Höss, now the Auschwitz Research Center on Hate, Extremism and Radicalization (ARCHER) at House 88 in Oświęcim, Poland. The site functions as a center for counter-extremism research, advocacy, and art.