[Untitled photo, possibly related to: Farmers examine exhibit of hybrid corn, mechanical cornhusking contest, Hardin County… https://www.rawpixel.com/image/12318162/image-person-public-domain-manFree Image from public domain license
[Untitled photo, possibly related to: Portable-type mechanical hop picker. Yakima Chief Hop Ranch, Yakima County… https://www.rawpixel.com/image/12173291/image-plant-person-artFree Image from public domain license
Farmer comes over a stile, mechanical cornhusking contest, Hardin County, Iowa. Sourced from the Library of Congress. https://www.rawpixel.com/image/12318516/image-person-sky-public-domainFree Image from public domain license
Setting up stand for mechanical amusement device, state fair, Donaldsonville, Louisiana by Russell Lee https://www.rawpixel.com/image/12167291/image-person-art-skyFree Image from public domain license
Repickers after hops have gone through mechanical pickers. Yakima County, Washington by Russell Lee https://www.rawpixel.com/image/12152833/image-person-art-vintageFree Image from public domain license
Allen Ramsey Wurtele, second from left, inventor of mechanical sugarcane harvester with sugarcane experts who came up from… https://www.rawpixel.com/image/12112812/image-face-plant-personFree Image from public domain license
A model community planned by the Suburban Division of the U.S. Resettlement Administration. Mechanical digger opening a… https://www.rawpixel.com/image/12308919/image-plant-person-forestFree Image from public domain license
Bean thresher. Mechanized agriculture between Turlock and Merced, California. Sourced from the Library of Congress. https://www.rawpixel.com/image/12246270/photo-image-person-sky-public-domainFree Image from public domain license
Feeding hop vines into stationary-type mechanical picker. Yakima County, Washington by Russell Lee https://www.rawpixel.com/image/12152360/image-person-art-vintageFree Image from public domain license
[Untitled photo, possibly related to: Farmers at mechanical cornhusking contest. One has a sample ear of hybrid corn, Hardin… https://www.rawpixel.com/image/12318255/image-plant-person-skyFree Image from public domain license
[Untitled photo, possibly related to: Farmer adjusts corn picker at mechanical cornhusking contest, Hardin County, Iowa].… https://www.rawpixel.com/image/12317224/image-person-sky-airplaneFree Image from public domain license
Winslow, Arizona. W.F. Leverenz, maintainer, at work on one of the units of the diesel freight locomotive in the Atchison… https://www.rawpixel.com/image/12336649/image-face-person-airplaneFree Image from public domain license
[Untitled photo, possibly related to: Contest for mechanical corn pickers, Hardin County, Iowa]. Sourced from the Library of… https://www.rawpixel.com/image/12318585/image-plant-person-public-domainFree Image from public domain license
A halftrac scout car gets a touch-up job on the chassis assembly line of an Ohio truck plant. A durable finish protects the… https://www.rawpixel.com/image/12306735/image-plant-person-hospitalFree Image from public domain license
Training. Work Projects Administration (WPA) vocational school. The complicated mechanism of an airplane engine will be no… https://www.rawpixel.com/image/12306963/image-people-art-airplaneFree Image from public domain license
Detail of cleaning apparatus on portable-type mechanical hop picker, Yakima Chief Hop Ranch, Yakima County, Washington by… https://www.rawpixel.com/image/12171597/image-plant-person-artFree Image from public domain license
Farmers watch corn picker at mechanical cornhusking contest, Hardin County, Iowa. Sourced from the Library of Congress. https://www.rawpixel.com/image/12317015/image-plant-people-skyFree Image from public domain license
Tearing down hop vines which will be fed into the portable-type mechanical hop picker, Yakima Chief Hop Ranch, Yakima… https://www.rawpixel.com/image/12173282/image-face-plant-personFree Image from public domain license
Baseball players in war production. "Frenchy" Uhalt, center fielder with Hollywood Club, puts his gloves aside to work in… https://www.rawpixel.com/image/12308897/image-hand-person-artFree Image from public domain license
[Untitled photo, possibly related to: Farmers at mechanical cornhusking contest, Hardin County, Iowa]. Sourced from the… https://www.rawpixel.com/image/12317228/image-person-sky-public-domainFree Image from public domain license
[Untitled photo, possibly related to: Training women to operate buses and taxicabs]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12339134/image-face-person-public-domainFree Image from public domain license
Production. 105 millimeter shells. Carefully stacked prior to shipment, thousands of shining shells await shipment to the… https://www.rawpixel.com/image/12306437/image-face-plant-personFree Image from public domain license
[Untitled photo, possibly related to: Mechanical cutting machine that increases coal production. Old Ben number eight mine.… https://www.rawpixel.com/image/12324193/image-person-public-domain-manFree Image from public domain license
Farmers at mechanical cornhusking contest, Hardin County, Iowa. Sourced from the Library of Congress. https://www.rawpixel.com/image/12318523/image-plant-person-public-domainFree Image from public domain license
Female mechanic pulling out the weather seal of a vehicle https://www.rawpixel.com/image/1206516/happy-female-car-mechanicView license
Chicago, Illinois. Engineer of an incoming locomotive in his cab at a Chicago and Northwestern Railroad yard. Sourced from… https://www.rawpixel.com/image/12290225/photo-image-person-public-domain-factoryFree Image from public domain license
Holabird ordnance depot, Baltimore, Maryland. Sourced from the Library of Congress. https://www.rawpixel.com/image/12294293/photo-image-person-technology-public-domainFree Image from public domain license
Coal miner who is unemployed because of mechanization of coal mine. Bush, Illinois. Sourced from the Library of Congress. https://www.rawpixel.com/image/12274352/photo-image-face-hand-peopleFree Image from public domain license
Fort Riley, Kansas. Soldiers of a mechanized reconnaissance unit during a simulated dismounted attack. Sourced from the… https://www.rawpixel.com/image/12288075/photo-image-face-plant-peopleFree Image from public domain license
A drill press in operation at the Pratt and Whitney Aircraft Corporation. East Hartford, Connecticut. Sourced from the… https://www.rawpixel.com/image/12279135/photo-image-person-technology-public-domainFree Image from public domain license
Chicago, Illinois. Cutting a metal part for a locomotive at the Chicago and Northwestern Railroad repair shops. Sourced from… https://www.rawpixel.com/image/12288712/photo-image-face-person-public-domainFree Image from public domain license
Fort Riley, Kansas. Soldiers of a mechanized reconnaissance unit during a simulated dismounted attack. Sourced from the… https://www.rawpixel.com/image/12287774/photo-image-face-plant-peopleFree Image from public domain license
Burlington, North Carolina. Maintenance shops of the Associated Transport terminal. Sourced from the Library of Congress. https://www.rawpixel.com/image/12292614/photo-image-person-public-domain-womanFree Image from public domain license
Portable-type hop picker at work in the fields, Yakima County, Washington. In 1940 there were two mechanical pickers in this… https://www.rawpixel.com/image/12152831/image-plant-hand-personFree Image from public domain license
[Untitled photo, possibly related to: Getting machinery ready for the grinding season, Bethlehem Sugar Mill, St. Croix… https://www.rawpixel.com/image/12264627/photo-image-person-technology-public-domainFree Image from public domain license
[Untitled photo, possibly related to: Bar Harbor, Maine. Civil Air Patrol base headquarters of coastal patrol no. 20. Plane… https://www.rawpixel.com/image/12295883/photo-image-person-plane-technologyFree Image from public domain license
[Untitled photo, possibly related to: Fort Madison, Iowa. In the train control room at the Shopton shops of the Atchison… https://www.rawpixel.com/image/12289860/photo-image-person-technology-public-domainFree Image from public domain license