https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13972591Edit ImageSaveSaveEditCropCustom TextA clock dial on which a skeleton holds an oil lamp. Drawing by Caleb Elwin, 1800.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 842 x 1200 px | 300 dpiLarge JPEG 2306 x 3285 px | 300 dpiFree DownloadA clock dial on which a skeleton holds an oil lamp. Drawing by Caleb Elwin, 1800.More