This vintage 10-inch porcelain plate is a wonderful souvenir piece that showcases the beauty and charm of Pennsylvania. The plate features the phrase "The Keystone State" along with a colorful and intricate design that captures the essence of the state's rich history and culture. The brand of this collectible plate is Nautilis, and it was made in the United States during the 1950s. This decorative plate is a great addition to any collection, with its unique features like vintage backstamp, printed design, and vibrant colors that enhance its charm and appeal. Display it in your home, use it as a decorative piece or gift it to someone who appreciates vintage collectibles. This souvenir plate is not only a beautiful piece of art but also a wonderful way to preserve the memories and history of Pennsylvania.