https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13959505Edit ImageSaveSaveEditCropCustom TextAstronomy: a large telescope, at Greenwich Observatory. Coloured wood engraving.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 1195 px | 300 dpiLarge JPEG 2688 x 2677 px | 300 dpiFree DownloadAstronomy: a large telescope, at Greenwich Observatory. Coloured wood engraving.More