https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/2906534Edit ImageSaveSaveEditCropCustom TextKey Blue (from series, the Mathematical Basis of the Arts), (ca. 1934) painting in high resolution by Joseph Schillinger. Original from The Smithsonian Institution. Digitally enhanced by rawpixel.MorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSmall JPEG 896 x 1200 px | 300 dpiLarge JPEG 1831 x 2452 px | 300 dpiTIFF 1831 x 2452 px | 300 dpi | 25.73 MBFree DownloadKey Blue (from series, the Mathematical Basis of the Arts), (ca. 1934) painting in high resolution by Joseph Schillinger. Original from The Smithsonian Institution. Digitally enhanced by rawpixel.More