https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13980341Edit ImageSaveSaveEditCropCustom TextHerbert S. Gasser. Process print after Esselte, 1946.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGSmall JPEG 834 x 1200 px | 300 dpiLarge JPEG 2208 x 3176 px | 300 dpiFree DownloadHerbert S. Gasser. Process print after Esselte, 1946.More