https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13990992Edit ImageSaveSaveEditCropCustom TextGeorge Adams demonstrates his electrotherapy machine to a woman and her daughter. Line engraving by J. Lodge, 1799, after T. Milne.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 1095 px | 300 dpiLarge JPEG 2835 x 2587 px | 300 dpiFree DownloadGeorge Adams demonstrates his electrotherapy machine to a woman and her daughter. Line engraving by J. Lodge, 1799, after T. Milne.More