https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13971600Edit ImageSaveSaveEditCropCustom TextA man stands pointing to a large screen, other people are sitting and standing around talking with papers in their hands. Etching.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 758 x 1200 px | 300 dpiLarge JPEG 2150 x 3403 px | 300 dpiFree DownloadA man stands pointing to a large screen, other people are sitting and standing around talking with papers in their hands. Etching.More