a. Oval-shaped with dark blue border "Pan American World Airways, The System of the Flying Clippers" in white letters; illustration of Pan Am winged world logo and "PAA." b. Square white, red and blue envelope with clear plastic window; printed text, "Official Airlines Baggage Stickers, The Newest Collector's Item ... A Travel Education By the Package, A World of Excitement and Color Brought to You by the World's Foremost Airlines, Several Assortments available, $2.59" in red and blue letters.