Pan American Airways Porcelain Sign: 24.25″ (dia.) x 2″ deep large, vintage, heavy convex shaped enameled porcelain sign for Pan American Airways. This Co. was a 20th century cultural American icon and will be forever remembered for its style and innovations (operated from 1927-1991). A powerful and impressive piece, that is clean, bright and excellent, w/ nice rich surface patina (near mint), w/ exception of a few flea bites at outer edge and a few minor tar specks. Min. bid $100.