https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14015518Edit ImageSaveSaveEditCropCustom TextTwo men standing next to a complex wooden apparatus. Process print.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 739 px | 300 dpiLarge JPEG 3500 x 2156 px | 300 dpiBest Quality JPEG 3510 x 2162 px | 300 dpiFree DownloadTwo men standing next to a complex wooden apparatus. Process print.More