https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14009249Edit ImageSaveSaveEditCropCustom TextChemistry: symbols of elements and substances. Coloured engraving by H. Ashby, 1799, after W. Jackson.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 937 x 1200 px | 300 dpiLarge JPEG 1217 x 1559 px | 300 dpiFree DownloadChemistry: symbols of elements and substances. Coloured engraving by H. Ashby, 1799, after W. Jackson.More