This is a 1984 4-page centerfold ad for a Smithsonian Institution illustration by Naiad & Walter Einsel! The size of the ad is approximately 11x32inches. The caption for this ad is 'The Smithsonian Institution' The ad is in good overall condition, with just a small 1/2-inch tear at the bottom. This vintage ad would look great framed and displayed! Add it to your collection today!