https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13976165Edit ImageSaveSaveEditCropCustom TextClocks: a watch mechanism and main spring. Engraving by Mutlow after Blunt.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 764 x 1200 px | 300 dpiLarge JPEG 1266 x 1988 px | 300 dpiFree DownloadClocks: a watch mechanism and main spring. Engraving by Mutlow after Blunt.More