AVE6327593: Puerto Rico, 1960s: City skyline / Bridgeman Images

AVE6326509: United States, 1960s: lady works at paper sorting machine / Bridgeman Images

AVE6326518: 1970s: Phone book pages flapping in the wind / Bridgeman Images

AVE6326519: 1970s: Paper fluttering in the wind / Bridgeman Images

AVE6326520: 1970s: Box with "River beauty" written on side / Bridgeman Images

AVE6326523: United States, 1960s: boat in waves on water / Bridgeman Images

AVE6326527: 1970s: Garbage spinning into compactor / Bridgeman Images

AVE6326529: United States, 1960s: hand turns metal hatch on door / Bridgeman Images

AVE6326773: United States, 1960s: Young elephant unloaded from an airplane. / Bridgeman Images

AVE6326774: United States, 1960s: An artist paints a sun inside a drawing of an oven. / Bridgeman Images

AVE6326777: United States, 1960s: Two sheets are rolled through a machine to create a printing plate for a newspaper. / Bridgeman Images

AVE6326780: United States, 1960s: One man brings a metal plate to another man who uses it to do a final printing on paper. / Bridgeman Images

AVE6326790: UNITED STATES 1970s – Americans, young and old, all eating burgers. / Bridgeman Images

AVE6326794: UNITED STATES 1970s – Cut potatoes are deep fried in oil to make french fries. / Bridgeman Images

AVE6326798: United States, 1960s: Newsprint is fed through the rollers to print newspaper pages. / Bridgeman Images

AVE6326802: United States, 1960s: Writers continue reading in the newsroom to get ideas for their articles. / Bridgeman Images

AVE6326811: United States, 1960s: Writer goes through the archive to read previously written articles and picture about elephant. / Bridgeman Images

AVE6326818: United States, 1960s: Paperwork is sent through a pneumatic tube system which arrives at another site in the newspaper company. / Bridgeman Images

AVE6326820: United States, 1960s: A plate of an elephant picture is set on a plate to be used for printing / Bridgeman Images

AVE6326821: United States, 1960s: A man checks his information as he types his article on an old typewriter. / Bridgeman Images

AVE6326834: 1930s: UNITED STATES: cows walk to cow barn. / Bridgeman Images

AVE6326835: 1930s: UNITED STATES: man tests yield of purebreed cows. / Bridgeman Images

AVE6326838: 1930s: UNITED STATES: Ready to go to the creamery title. / Bridgeman Images

AVE6326841: 1930s: UNITED STATES: man tests and grades milk from churns. / Bridgeman Images

AVE6326842: 1930s: UNITED STATES: cooling of milk in glass lined tanks. / Bridgeman Images

AVE6326847: 1930s: UNITED STATES: workers at factory supervise milk bottles on machine. / Bridgeman Images

AVE6326850: 1930s: UNITED STATES: cows sit under trees in field by water. / Bridgeman Images

AVE6326854: 1950s: Radio operator transmits message / Bridgeman Images

AVE6326866: 1930s: Table “Grammar School” moves away, replaced by table “High School”, animation of rows of people fill columns, they walk and decrease from column, numbers 34, 24, 18, 13 label the chart / Bridgeman Images

AVE6326868: 1950s: Three people eating picnic lunch on boat / Bridgeman Images

AVE6326871: 1950s: Man at desk speaks and picks up telephone / Bridgeman Images

AVE6326873: 1950s: Highway patrolman speaks to dispatcher / Bridgeman Images

AVE6326889: 1930s: Car parked on a street with buildings, people walk / Bridgeman Images

AVE6326893: 1930s: Garden with buildings around, clothes hang on a rope, people garden / Bridgeman Images

AVE6326895: 1950s: Man inspects canned goods in cupboard / Bridgeman Images

AVE6326896: 1930s: Doctor's office with bed and closets / Bridgeman Images