https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13987415Edit ImageSaveSaveEditCropCustom TextMargaret Duchess of Portland, William Duke of Portland, and Lady Mary Wortley Montagu, in ovals, with emblematic and heraldic devices. Line engraving by G. Vertue 1739, after C.F. Zincke, 1738.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 845 px | 300 dpiLarge JPEG 3380 x 2380 px | 300 dpiFree DownloadMargaret Duchess of Portland, William Duke of Portland, and Lady Mary Wortley Montagu, in ovals, with emblematic and heraldic devices. Line engraving by G. Vertue 1739, after C.F. Zincke, 1738.More