https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14012588Edit ImageSaveSaveEditCropCustom TextArchitecture: arches (top), and a pantograph (below). Engraving by Mutlow, 1808.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 727 x 1200 px | 300 dpiLarge JPEG 2087 x 3444 px | 300 dpiFree DownloadArchitecture: arches (top), and a pantograph (below). Engraving by Mutlow, 1808.More