https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14019216Edit ImageSaveSaveEditCropCustom TextChemistry: stages in the production of ether, showing varous retorts in use on furnaces. Engraving, 17--.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 3400 x 2093 px | 300 dpiFree DownloadChemistry: stages in the production of ether, showing varous retorts in use on furnaces. Engraving, 17--.More