Sunspot drawings in white light, made at the Specola Solare Ticinese (https://www.specola.ch/en/sunspot-drawings-of-the-specola-solare-ticinese/sunspot-drawings-of-the-specola-solare-ticinese/) during the observations for the Neckel flux atlas. We use the same image to represent the solar disc for several combined wavelength bands that are separated in the atlas. In those cases, the observations were taken within one day of each other and, thus, the disc image is reasonably representative of the solar disc for all those bands.