Ice Skates (ca. 1940) by Harley Kempter. Original from The National Gallery of Art. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3389236/free-illustration-image-antique-art-artworkFree Image from public domain licenseThe urine and its derangements : with the application of physiological chemistry to the diagnosis and treatment of… https://www.rawpixel.com/image/14004935/image-background-paper-cartoonFree Image from public domain licenseA catalogue of the Portland Museum, lately the property of the Dutchess Dowager of Portland, deceased: which will be sold by… https://www.rawpixel.com/image/13989478/image-cartoon-frame-personFree Image from public domain licenseMargaret Duchess of Portland, William Duke of Portland, and Lady Mary Wortley Montagu, in ovals, with emblematic and… https://www.rawpixel.com/image/13987415/image-face-person-artFree Image from public domain licenseMiss Cavendish M. Harley, by M. Dahl by Caldesi and Montecchi https://www.rawpixel.com/image/14314672/miss-cavendish-harley-dahl-caldesi-and-montecchiFree Image from public domain licenseMiss M. Cavendish Harley, by C. Jervas by Caldesi and Montecchi https://www.rawpixel.com/image/14314977/miss-cavendish-harley-jervas-caldesi-and-montecchiFree Image from public domain license