https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13970250Edit ImageSaveSaveEditCropCustom TextA physician examining a urine flask. Enamel by K.E.L. Hummel, 1859, after Caspar Netscher.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 867 x 1200 px | 300 dpiLarge JPEG 2362 x 3268 px | 300 dpiFree DownloadA physician examining a urine flask. Enamel by K.E.L. Hummel, 1859, after Caspar Netscher.More