'USS Constitution is a wooden-hulled, three-masted heavy frigate of the United States Navy. Named by President George Washington after the Constitution of the United States of America, she is the world's oldest commissioned naval vessel afloat. Launched in 1797, Constitution was one of six original frigates authorized for construction by the Naval Act of 1794 and the third constructed.'
In the USS Constitution Museum:
http://www.ussconstitutionmuseum.org/visit/plan/?gclid=CMyk2IWQ9bcCFScV7AodMnkA9A