Have run into lots of Pan Am artifacts before, but never precisely this sort of thing, created long before the Euro came into being. (At least the time zones have remained the same!) A piece of history from the crème de la crème of U.S. air carriers, this cardboard keepsake measures a hair under 4 3/4" in circumference. Marked "Pan American" as well as "PAA," which was the airline's ICAO code. In extremely good vintage condition.