Clocks: diagrams for setting-out a sundial. Engraving by A. Bell. https://www.rawpixel.com/image/13970402/clocks-diagrams-for-setting-out-sundial-engraving-bellFree Image from public domain licenseCivil engineering: diagrams for setting-out with a dial. Engraving by J. Pass, 1809. https://www.rawpixel.com/image/14002547/image-paper-cartoon-plantFree Image from public domain licenseDiagrams for setting-out a dial. Engraving by J. Pass, 1809. https://www.rawpixel.com/image/13979225/diagrams-for-setting-out-dial-engraving-pass-1809Free Image from public domain license