Camp Lejeune, New River, North Carolina. Engineers of the 51st Composite Battalion, U.S. Marine Corps, firing a thirty… https://www.rawpixel.com/image/12294230/photo-image-shadow-person-public-domainFree Image from public domain licenseB-29 Super Fortress machine gun ammunition. Sourced from the Library of Congress. https://www.rawpixel.com/image/12298067/photo-image-pattern-public-domain-houseFree Image from public domain license[Untitled photo, possibly related to: New Britain, Connecticut. Women employed at Landers, Frary and Clark plant. A shuttle… https://www.rawpixel.com/image/12296406/photo-image-face-plant-personFree Image from public domain licenseU.S. Naval Academy, Annapolis, Maryland. Instruction in the machine shop. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288210/photo-image-person-public-domain-factoryFree Image from public domain licenseIn the Vought-Sikorsky Aircraft Corporation, Stratford, Connecticut. Sourced from the Library of Congress. https://www.rawpixel.com/image/12262497/photo-image-person-airplane-public-domainFree Image from public domain licenseNews photographers at tourist camp, Washington, D.C.. Sourced from the Library of Congress. https://www.rawpixel.com/image/12259744/photo-image-plant-people-grassFree Image from public domain licenseWorkers in oil field, Marion County, Illinois. Sourced from the Library of Congress. https://www.rawpixel.com/image/12252435/photo-image-people-sky-airplaneFree Image from public domain license[Untitled photo, possibly related to: U.S. Naval Academy, Annapolis, Maryland. Studying a big gun]. Sourced from the Library… https://www.rawpixel.com/image/12288207/photo-image-people-public-domain-hospitalFree Image from public domain licenseCamp Lejeune, New River, North Carolina. Engineers of the 51st Composite Battalion, U.S. Marine Corps, firing a thirty… https://www.rawpixel.com/image/12293961/photo-image-shadow-person-woodFree Image from public domain licenseLuggage of newly-arrived migratory workers near Onley, Virginia. Sourced from the Library of Congress. https://www.rawpixel.com/image/12276515/photo-image-plant-grass-treeFree Image from public domain licenseBar Harbor, Maine. Civil Air Patrol base headquarters of coastal patrol no. 20. Plane engine receiving a routine overhaul in… https://www.rawpixel.com/image/12295697/photo-image-person-plane-technologyFree Image from public domain licenseFort Riley, Kansas. Soldiers of a cavalry machine gun platoon going over an obstacle during a field problem. Sourced from… https://www.rawpixel.com/image/12288062/photo-image-plant-people-horseFree Image from public domain licensePittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal Company. Electrically driven mine engine.… https://www.rawpixel.com/image/12290031/photo-image-person-public-domain-manFree Image from public domain licenseJackson, Michigan. Tractor which runs a threshing machine. Sourced from the Library of Congress. https://www.rawpixel.com/image/12290476/photo-image-plant-person-grassFree Image from public domain licenseDetroit, Michigan. Riot at the Sojourner Truth homes, a new U.S. federal housing project, caused by white neighbors' attempt… https://www.rawpixel.com/image/12290904/photo-image-people-public-domain-manFree Image from public domain license[Untitled photo, possibly related to: Tractor with planter and go-devil attached, large farm near Ralls, Texas] by Russell… https://www.rawpixel.com/image/12168932/image-person-art-skyFree Image from public domain licensePushing a car belonging to agricultural day laborer to start it, near Muskogee, Muskogee County, Oklahoma by Russell Lee https://www.rawpixel.com/image/12169207/image-plant-person-artFree Image from public domain license[Untitled photo, possibly related to: Sugarcane being unloaded onto trailer truck by means of a machine developed by worker… https://www.rawpixel.com/image/12166883/image-plant-person-artFree Image from public domain licenseNational Guard with machine gun overlooking Chevrolet factories number nine and number four. Flint, Michigan. Sourced from… https://www.rawpixel.com/image/12275769/photo-image-person-public-domain-factoriesFree Image from public domain licenseB-29 Super Fortress machine gun ammunition. Sourced from the Library of Congress. https://www.rawpixel.com/image/12298050/photo-image-person-pattern-public-domainFree Image from public domain licenseFort Riley, Kansas. Soldiers of a cavalry machine gun platoon going over an obstacle during a field problem. Sourced from… https://www.rawpixel.com/image/12288155/photo-image-people-horse-skyFree Image from public domain licenseParkin (vicinity), Arkansas. The families of evicted sharecroppers of the Dibble plantation. They were legally evicted the… https://www.rawpixel.com/image/12267477/photo-image-face-person-public-domainFree Image from public domain licenseFort Riley, Kansas. Soldiers of a cavalry machine gun platoon going over an obstacle during a field problem. Sourced from… https://www.rawpixel.com/image/12287773/photo-image-people-horse-skyFree Image from public domain licenseFort Riley, Kansas. Soldiers of a cavalry machine gun platoon going over an obstacle during a field problem. Sourced from… https://www.rawpixel.com/image/12287760/photo-image-people-horse-skyFree Image from public domain licenseFort Riley, Kansas. Soldiers of a cavalry machine gun platoon going over an obstacle during a field problem. Sourced from… https://www.rawpixel.com/image/12288049/photo-image-plant-person-horseFree Image from public domain license