https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13964895Edit ImageSaveSaveEditCropCustom TextGroups of people with different trades and professions making demands for more pay and better working conditions. Coloured lithograph.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 835 px | 300 dpiLarge JPEG 3328 x 2316 px | 300 dpiFree DownloadGroups of people with different trades and professions making demands for more pay and better working conditions. Coloured lithograph.More