Top panel: spectral template fit to a spectrum of PTF10bgz, as obtained from the Modjaz et al. (2016) routine. The SN Ic template (thin red line) has been shifted and smoothed to match the spectrum of our SN (gray line) in the wavelength region around Fe II λ5169 (black line). The best fit is shown as a thick red line. The shift velocity v must be added to the known Fe II λ5169 velocity of the SN Ic template to obtain the Fe II λ5169 velocity of our SN. Bottom panel: velocity of our SN Ic-BL sample as compared to the SNe Ic-BL (not associated with GRBs) from Modjaz et al. (2016).