https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13986376Edit ImageSaveSaveEditCropCustom TextThe monument to John Playfair (right) and the New Observatory (left) on Calton Hill, Edinburgh. Line engraving by A. Cruse after T. H. Shepherd.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 827 px | 300 dpiLarge JPEG 3250 x 2241 px | 300 dpiFree DownloadThe monument to John Playfair (right) and the New Observatory (left) on Calton Hill, Edinburgh. Line engraving by A. Cruse after T. H. Shepherd.More