https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14005961Edit ImageSaveSaveEditCropCustom TextA leg with a swelling behind the knee: side view. Drawing, c. 1806.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 1035 px | 300 dpiLarge JPEG 3180 x 2744 px | 300 dpiFree DownloadA leg with a swelling behind the knee: side view. Drawing, c. 1806.More