Perspective Sketch (1917) by Louis Schaettle. Original public domain image from The Smithsonian Institution. Digitally… https://www.rawpixel.com/image/9414912/image-vintage-illustration-public-domainFree Image from public domain licensePerspective Sketch (1917) by Louis Schaettle. Original public domain image from The Smithsonian Institution. Digitally… https://www.rawpixel.com/image/9533724/image-vintage-illustration-public-domainFree Image from public domain licenseArchitectural Drawing (1802-1804) by Sir Robert Smirke the younger. Original public domain image from Yale Center for… https://www.rawpixel.com/image/10103595/image-paper-art-watercolorsFree Image from public domain licenseStudy for a Ceiling Decoration: Coronation of the Virgin (recto); Female Head (verso) attributed to Giacinto Brandi https://www.rawpixel.com/image/9085360/image-pupil-fresco-cloudsFree Image from public domain licenseView of the Bay of Naples with Vesuvius, Smoking, in the Distance (Evening) https://www.rawpixel.com/image/9084896/view-the-bay-naples-with-vesuvius-smoking-the-distance-eveningFree Image from public domain licenseStudies for the Libyan Sibyl (recto); Studies for the Libyan Sibyl and a small Sketch for a Seated Figure (verso) by… https://www.rawpixel.com/image/9184318/image-dark-academia-john-singer-sargent-frescoFree Image from public domain licenseLokomobilen 2 (1894), a beautifully detailed design of an engine train and its compartments. Digitally enhanced from the… https://www.rawpixel.com/image/431534/free-illustration-image-steampunk-train-engineFree Image from public domain licenseLocomotive (1891) by Francis William Webb (1836–1906), a beautifully detailed design of an engine train and its… https://www.rawpixel.com/image/431518/free-illustration-image-train-steampunk-locomotiveFree Image from public domain licenseEngine train and its compartments from a technical journal The Engineer by Edward Charles Healey (1869). Digitally enhanced… https://www.rawpixel.com/image/431537/free-illustration-image-train-steampunk-engravingFree Image from public domain licenseStudy of a Figure in a Niche (Saint Ambrose; recto); Architectural Studies: Four Alternative Designs for Fictive Niches and… https://www.rawpixel.com/image/9184740/image-arcimboldo-chosen-angel-drawing-figure-studyFree Image from public domain licenseTechnical illustration shows early balloon designs: "Lana's aeronautic machine," "Montgolfiers' balloon," "Blanchard's… https://www.rawpixel.com/image/7666157/image-art-vintage-balloonFree Image from public domain licenseDrawing board png sticker illustration, transparent background. Free public domain CC0 image. https://www.rawpixel.com/image/6684282/png-sticker-vintageFree PNG from public domain licenseGod the Father Appearing to Jacob by Giovanni Benedetto Castiglione (Il Grechetto) https://www.rawpixel.com/image/9184637/image-angel-painting-classic-paintings-public-domain-balanceFree Image from public domain licenseTitle: The anatomy and physiology of the horse : with anatomical and questional illustrations : containing, also, a series… https://www.rawpixel.com/image/9976432/image-face-person-artFree Image from public domain licenseDesign for Cabriolet or Victoria, no. 3459, Manufacturer : Brewster & Co. https://www.rawpixel.com/image/9330090/design-for-cabriolet-victoria-no-3459Free Image from public domain licenseElectric train png illustration, transparent background. Free public domain CC0 image. https://www.rawpixel.com/image/7662095/png-people-vintageFree PNG from public domain licenseEquestrian Statue of King Charles I at Charing Cross by Wenceslaus Hollar https://www.rawpixel.com/image/9613617/equestrian-statue-king-charles-charing-cross-wenceslaus-hollarFree Image from public domain licenseDesign for 4 seat Phaeton, no top, no. 4067, Manufacturer : Brewster & Co. https://www.rawpixel.com/image/9330123/design-for-seat-phaeton-top-no-4067Free Image from public domain license