https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13958267Edit ImageSaveSaveEditCropCustom TextAn itinerant quack-doctor. Oil painting by an English painter, mid-19th century.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 977 x 1200 px | 300 dpiLarge JPEG 2470 x 3034 px | 300 dpiFree DownloadAn itinerant quack-doctor. Oil painting by an English painter, mid-19th century.More