The Sacred Monogram with the Symbols of the Evangelists and the Crucifixion (Schr. 1812) https://www.rawpixel.com/image/9085101/image-art-vintage-public-domainFree Image from public domain licenseChrist on the Cross with the Virgin and Saint John by Anonymous, German, Swabia, 15th century https://www.rawpixel.com/image/9184787/image-christ-cross-christian-1480Free Image from public domain licenseThe Virgin and Child on the Crescent by Anonymous, Netherlandish, 15th century https://www.rawpixel.com/image/9611866/the-virgin-and-child-the-crescent-anonymous-netherlandish-15th-centuryFree Image from public domain licenseVirgin on a Crescent, Title-page from Pelbartus de Temesvar: Stellarium corone (Schr. 2869) https://www.rawpixel.com/image/9328507/image-paper-vintage-public-domainFree Image from public domain license