Grotto from the Gardens of the Farnese Palace at Caprarola, Preparatory Study for the 'Oeuvres Complètes de Jacques Barozzi… https://www.rawpixel.com/image/9331075/photo-image-hand-art-watercolorsFree Image from public domain licenseCarpentry: lathe tools with architectural profiles. Engraving by N. L. Rousseau [] after L.J. Goussier. https://www.rawpixel.com/image/13959486/image-background-paper-patternFree Image from public domain licenseItalian artists: Michelangelo in the centre, others around the perimeter. Lithograph by V. Mollame, 1842. https://www.rawpixel.com/image/14000787/image-cartoon-frame-personFree Image from public domain licensePhrenological chart with three figures of a head and sketches of the heads of famous men. Coloured lithograph, 1836. https://www.rawpixel.com/image/13992613/image-paper-cartoon-faceFree Image from public domain license