https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14018126Edit ImageSaveSaveEditCropCustom TextInventions: various items including a fountain-pen, a pendulum, and a pantograph. Engraving by T. Jeffrys.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 689 x 1200 px | 300 dpiLarge JPEG 2010 x 3500 px | 300 dpiBest Quality JPEG 2125 x 3701 px | 300 dpiFree DownloadInventions: various items including a fountain-pen, a pendulum, and a pantograph. Engraving by T. Jeffrys.More