Ken Kesey (1935- 2001) & the Merry Pranksters. In 1964 Kesey bought an old school bus, painted it psychedelic colours, wired with speakers and traveled from San Francisco to the World's Fair in New York City. They held "acid tests" with LSD-laced Kool-Aid. Furthur was a 1939 International Harvester school bus purchased by author Ken Kesey in 1964. The bus was stripped down and remodeled inside and out for a psychedelic excursion across the country with Kesey and his Merry Pranksters on board. The bus was named by artist Roy Sebern who painted the word “Furthur” on the destination placard as a kind of one-word poem and inspiration to keep going whenever the bus broke down. Beat legend Neal Cassady was the driver of the famous bus on its original trip to New York for the opening of Kesey's new book, Sometimes a Great Notion. The trip was filmed by the Merry Pranksters. Other Furthur trips included an anti-Vietnam war rally in 1966 and Woodstock. More can be read about the adventures of the Merry Pranksters on Furthur in Tom Wolfe's book The Electric Kool Aid Acid Test. This postcard features an image of their second bus, a 1947 International, which also had the license plate "Furthr". A psychedelic traveling classic.