AVE6321999: Crane Lifting Skip / Bridgeman Images

AVE6322002: Elevator Inside a Department Store / Bridgeman Images

AVE6322008: Man Reads by Candle Light / Bridgeman Images

AVE6322023: United States, 1950s: man speaking to another man, man walks away / Bridgeman Images

AVE6322029: United States, 1950s: View of banner, pan up to tower / Bridgeman Images

AVE6322062: United States, 1950s: Close up of girl in audience / Bridgeman Images

AVE6322065: United States, 1950s: Man climbs up ladder at circus / Bridgeman Images

AVE6322074: United States, 1950s: Woman climbs up ladder at circus, stands on trapeze / Bridgeman Images

AVE6322171: 1940s: Boats and fishing vessels drift in the harbor at sunset / Bridgeman Images

AVE6322192: 1980s: Computerized airplane landing display, compared to images of the actual runway and pilot's view / Bridgeman Images

AVE6322204: 1980s: Small aircraft parked at an airport / Bridgeman Images

AVE6322049: United States, 1950s: Boy eats Cracker Jack / Bridgeman Images

AVE6321997: Man Operates Lumber Machinery / Bridgeman Images

AVE6324540: Rat Given Food Containing Poison / Bridgeman Images

AVE6324639: 1910s: Young girl cries next to a shed / Bridgeman Images

AVE6320416: Shoals of fish in sea, Unites States, 1970s / Bridgeman Images

AVE6320468: United States, 1970s: Men drive antique car / Bridgeman Images

AVE6320518: United States, 1960s: boys play fight in garden / Bridgeman Images

AVE6320854: 1960s: Woman sings while performing in band / Bridgeman Images

AVE6320890: 1960s: Musicians play music in jazz band while standing, finish song and sit down / Bridgeman Images

AVE6320996: 1960s: Man bounces and sways to music / Bridgeman Images

AVE6321086: 1950s: Woman and boy smile and speak / Bridgeman Images

AVE6321191: United States, 1970s: Wiping Damp Off a Car Bonnet / Bridgeman Images

AVE6321256: United States, 1950s: A man on a tractor pushes a large pile of dirt / Bridgeman Images

AVE6321398: United States, 1960s: Family having barbecue by lake / Bridgeman Images

AVE6321629: United States, c.1950: School bus drives down suburban street, young children sit in seats / Bridgeman Images

AVE6323760: United States, 1960s: passengers on research bus / Bridgeman Images

AVE6323775: United States, 1960s: cartoon of exhaust control emissions / Bridgeman Images

AVE6323790: United States, 1960s: Vehicle Emission Laboratory grounds and building / Bridgeman Images

AVE6323776: United States, 1960s: vacuum motor and gate valve in engine of car / Bridgeman Images

AVE6324348: United States: 1950s: Man speaks on telephone. / Bridgeman Images

AVE6324227: United States 1950s: A man lays in a hospital bed at a cancer research hospital / Bridgeman Images

AVE6320273: Europe, 1940s: man carries delayed action bomb from ruins of house in London / Bridgeman Images

AVE6322226: 1980s: A jet engine / Bridgeman Images

AVE6322471: United States, 1950s: View of sink, zoom in, wand makes waves on water surface / Bridgeman Images

AVE6322448: United States, 1970s: Various paintings around a city, a group of young people painting a wall, a police officer walking along a building wall / Bridgeman Images