Continuum-removed spectra of all currently known large T types (Table A.1). The continuum was fitted by a linear function using data points at ~0.44−0.55 and ~0.72−0.76 µm (exact start and end points of the wavelengths were adjusted depending on the spectral curvature of the asteroids). Each was normalised at 0.55 µm and offset for clarity. Positive and negative detections of the 0.7 feature were coloured in purple and grey, respectively.