BTW Senor Wences 'head in the box' was called Pedro, and his hand with drawn face and wig was called 'Johnny'.

and from a web site on the 'World's Fair'

"the fair wasn't sanctioned by the Bureau of International Expositions because world's fairs are limited to one year runs. Besides the BIE had already given their blessing to Seattle's 1962 fair (only one U.S. fair allowed per decade). Consequently most European countries and the Communist bloc boycotted it. None-the-less countries mainly in Asia, South America, the Mid-East and Africa were represented."