https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13983837Edit ImageSaveSaveEditCropCustom TextTwo men face one another, one looks bemused and the other smokes a pipe upside down. Wood-engraving, mid-19th century.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 876 px | 300 dpiLarge JPEG 3100 x 2264 px | 300 dpiFree DownloadTwo men face one another, one looks bemused and the other smokes a pipe upside down. Wood-engraving, mid-19th century.More