https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13987206Edit ImageSaveSaveEditCropCustom TextCarpentry: various types of centring for arches. Engraving by A.J. Defehrt after Lucotte.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 754 x 1200 px | 300 dpiLarge JPEG 2100 x 3343 px | 300 dpiFree DownloadCarpentry: various types of centring for arches. Engraving by A.J. Defehrt after Lucotte.More