https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14019695Edit ImageSaveSaveEditCropCustom TextAstronomy: a mechanism for a model of the motion of a comet. Engraving after B. Martin.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 719 px | 300 dpiLarge JPEG 3500 x 2097 px | 300 dpiBest Quality JPEG 3543 x 2123 px | 300 dpiFree DownloadAstronomy: a mechanism for a model of the motion of a comet. Engraving after B. Martin.More