At the 1939-1940 New York World's Fair, the National Cash Register Company of Dayton, Ohio built their pavilion to look like a giant cash register, even larger than this one in Time Square. The number shown at the top was the fair's total attendance up to that date.
Aviators caps developed at the dawn of manned flight, as pilots in open cockpits needed to keep their ears and heads warm. Even as the cockpits of planes were closed, their popularity continued through WWII, up until jets necessitated the use of a helmet. Aviator style caps, sometimes goggles and all, were popular with boys of the 1950s, for whom the pilots of the Big One were heroes.