FORS2 spectrum of SN 2012bz in the rest frame (black), smoothed with a boxcar of 10 Å, cleaned of spurious features and host-galaxy emission lines, and corrected for Galactic extinction, compared to the reddening-corrected and rescaled spectra of SN 1998bw (Patat et al. 2001; blue dashed line) and SN 2003dh (Mazzali et al. 2003; Deng et al. 2004; cyan) at comparable rest-frame phases after explosion, and also with models for SN 2003dh (Mazzali et al. 2003; red solid line).