https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13962858Edit ImageSaveSaveEditCropCustom TextRuck's improved portable medical galvanic apparatus : sold wholesale and retail / by William Ruck.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 714 x 1200 px | 300 dpiLarge JPEG 2082 x 3500 px | 300 dpiBest Quality JPEG 2878 x 4837 px | 300 dpiFree DownloadRuck's improved portable medical galvanic apparatus : sold wholesale and retail / by William Ruck.More