https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13954366Edit ImageSaveSaveEditCropCustom TextScience: a trio of alarm mechanisms. Wood engraving, 1842.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 762 x 1200 px | 300 dpiLarge JPEG 1548 x 2439 px | 300 dpiFree DownloadScience: a trio of alarm mechanisms. Wood engraving, 1842.More