View from the Artist's Window, Grove Street by Robert Frederick Blum https://www.rawpixel.com/image/9084441/view-from-the-artists-window-grove-street-robert-frederick-blumFree Image from public domain licenseStudy for leader of the procession, “Vintage Festival,” Mendelssohn Glee Club, New York, NY, Robert Frederick Blum https://www.rawpixel.com/image/8847949/image-art-vintage-public-domainFree Image from public domain licenseStudy for a kneeling woman, “Vintage Festival,” Mendelssohn Glee Club, New York, NY, Robert Frederick Blum https://www.rawpixel.com/image/8847959/image-art-vintage-public-domainFree Image from public domain licenseStudy for the left maenad, “Vintage Festival,” Mendelssohn Glee Club, New York, NY https://www.rawpixel.com/image/9064306/image-vintage-hand-public-domainFree Image from public domain licenseStudy for leader of the procession, “Vintage Festival,” Mendelssohn Glee Club, New York, NY https://www.rawpixel.com/image/9065661/image-vintage-public-domainFree Image from public domain licenseLagune with Steamers and Gondolas, Venice by Robert Frederick Blum https://www.rawpixel.com/image/8985812/lagune-with-steamers-and-gondolas-venice-robert-frederick-blumFree Image from public domain license