https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13998119Edit ImageSaveSaveEditCropCustom TextTwo workers in an alchemist's laboratory, surrounded by chemical receptacles and equipment. Engraving, 1669.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 631 x 1200 px | 300 dpiLarge JPEG 1842 x 3500 px | 300 dpiBest Quality JPEG 1949 x 3704 px | 300 dpiFree DownloadTwo workers in an alchemist's laboratory, surrounded by chemical receptacles and equipment. Engraving, 1669.More