Figure 28a: Photograph of the Crematorium I roof ("pre-restoration photograph") taken before chamber restored (Auschwitz State Museum, Stanislaw Luczko Series, sygn. 5149). Z5 lies outside the picture (see Figures 30a and 33). Z1-Z4 easily identifiable by sealing marks
Figure 28b: Close-up with enhanced contrast and arrows marking the most discernable areas of the sealed holes.
© Holocaust and Genocide Studies, Oxford University Press, Volume 18, Number 1, Spring 2004, pages 68-103. Used with permission.