https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14293987Edit ImageSaveSaveEditCropCustom TextThe Heart of the Nation - Every Mother's Son Ready to Do His Duty. Callisthenics in the Army. by Keystone View CoOriginal public domain image from Getty MuseumMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 618 px | 300 dpiLarge JPEG 3500 x 1803 px | 300 dpiBest Quality JPEG 6639 x 3420 px | 300 dpiFree DownloadThe Heart of the Nation - Every Mother's Son Ready to Do His Duty. Callisthenics in the Army. by Keystone View CoMore