https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13987489Edit ImageSaveSaveEditCropCustom TextHeadache cured : Dr. Mettaur's headache pills : a certain relief / Brown Chemical Company.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 846 x 1200 px | 300 dpiLarge JPEG 1479 x 2099 px | 300 dpiFree DownloadHeadache cured : Dr. Mettaur's headache pills : a certain relief / Brown Chemical Company.More