https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13966389Edit ImageSaveSaveEditCropCustom TextClocks: diagrams for setting the dial of a sextant []. Coloured engraving by J. Pass, [1809].Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 960 x 1200 px | 300 dpiLarge JPEG 1414 x 1767 px | 300 dpiFree DownloadClocks: diagrams for setting the dial of a sextant []. Coloured engraving by J. Pass, [1809].More