Dynamic graphic optimism from the various World Fair's, 1933 to 1967
http://www.vintageadbrowser.com/search?q=WORLDs+FAIR
http://www.ultraswank.net/tag/worlds-fair/
http://theedwardians.blogspot.co.uk
http://www.cardcow.com/58564/1964-ny-worlds-fair-exposition/
http://numberoftheday.co.uk/post/2671522446/1962-worlds-fair-poster
http://easydreamer.blogspot.co.uk/2011/08/rodent-infestation-at-seattle-world...