Here’s a cool stamp from way back in 1939, the New York World’s Fair stamp.  The fair was the biggest one ever held with nearly 45 million people attending over two years.  It was held during the Art Deco period, and featured a varied assortment of modern structures, consumer appliances and other “futuristic” (for the time) things.  New York’s first regular television broadcast was of the World’s Fair opening.  The stamp shows two of the famous buildings (in the “modern” Art Deco style of the time), the Trylon and the Perisphere.  One reason I like the stamp so much is that it has such a clean and uncluttered design and almost has the feel of both an early 20th century illustration combined with the later pulp science fiction illustrations.