https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/3369688Edit ImageSaveSaveEditCropCustom TextDoor Knocker (ca. 1937) by Alfred Walbeck. Original from The National Gallery of Art. Digitally enhanced by rawpixel.MorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSmall JPEG 978 x 1200 px | 300 dpiLarge JPEG 2852 x 3500 px | 300 dpiBest Quality JPEG 3303 x 4054 px | 300 dpiTIFF 3303 x 4054 px | 300 dpi | 76.65 MBFree DownloadDoor Knocker (ca. 1937) by Alfred Walbeck. Original from The National Gallery of Art. Digitally enhanced by rawpixel.More