AVE6322213: USA, 1950s: Cows grazing in field under trees / Bridgeman Images

AVE6322216: 1980s: View from a plane flying in a loop / Bridgeman Images

AVE6322227: USA, 1950s: Two vials, one holding normal blood, the other holding anemic blood / Bridgeman Images

AVE6322242: United States, 1940s: Cows Eating Corn on Farm / Bridgeman Images

AVE6322249: United States, 1940s: Farm Buildings Fall Down Due to Lack of Money / Bridgeman Images

AVE6322251: United States, 1940s: Terraces in a Field / Bridgeman Images

AVE6322253: United States, 1940s: Farm Machines at Work in the Field / Bridgeman Images

AVE6322255: United States, 1940s: Pigs on a Farm / Bridgeman Images

AVE6322258: United States, 1940s: Hay Bales in a Field / Bridgeman Images

AVE6322259: United States, 1940s: Workers Pick Corn in a Field / Bridgeman Images

AVE6322261: United States, 1940s: Ladies Picking Beans in a Field / Bridgeman Images

AVE6322264: United States, 1940s: Milk Production Line in a Factory / Bridgeman Images

AVE6322269: United States, 1940s: Bomber Taking Off / Bridgeman Images

AVE6322299: 1950s: Playground / Bridgeman Images

AVE6322302: 1950s: Newspapers / Bridgeman Images

AVE6322304: 1950s: Classroom / Bridgeman Images

AVE6322308: 1950s: Schoolhouse in disrepair / Bridgeman Images

AVE6322314: 1950s: Woman looks through file cabinets / Bridgeman Images

AVE6322316: United States, 1960s: close up of traffic light at green / Bridgeman Images

AVE6322317: United States, 1960s: Lady stands and nods head / Bridgeman Images

AVE6322321: 1950s: Men sit and talk at meeting / Bridgeman Images

AVE6322323: United States, 1960s: Lady at check out till prepares register for customers / Bridgeman Images

AVE6322327: 1950s: Man looks through hanging blueprints / Bridgeman Images

AVE6322328: United States, 1960s: lady touches up hair / Bridgeman Images

AVE6322336: United States, 1960s: numbers flashing on cash register till / Bridgeman Images

AVE6322339: 1950s: Meeting / Bridgeman Images

AVE6322341: United States, 1960s: tins of Campbell's Tomato Soup on conveyor belt / Bridgeman Images

AVE6322345: United States, 1960s: Lady hands over cash at check out / Bridgeman Images

AVE6322348: United States, 1960s: lady counts out change / Bridgeman Images

AVE6322351: United States, 1960s: lady at cash register talks to customer / Bridgeman Images

AVE6322353: United States, 1960s: check out lady gives vouchers and receipts to customer / Bridgeman Images

AVE6322361: United States, 1960s: lady passes objects through till / Bridgeman Images

AVE6322375: 1920s: man rolls eyes and sits at desk while men rush around office / Bridgeman Images

AVE6322376: 1950s: School building / Bridgeman Images

AVE6322379: 1920s: men with rifles and pitchforks surround police vehicle and run away / Bridgeman Images

AVE6322414: United States, 1970s: Young man graffitis a wall then runs away / Bridgeman Images