https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13966061Edit ImageSaveSaveEditCropCustom TextAstronomy: a large refracting telescope, in use outdoors. Lithograph by W. Eldridge, 183-.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 940 x 1200 px | 300 dpiLarge JPEG 2358 x 3009 px | 300 dpiFree DownloadAstronomy: a large refracting telescope, in use outdoors. Lithograph by W. Eldridge, 183-.More