The product is a vintage North Atlantic Gnomonic Chart, designed for great circle sailing and originally used by the Marina Militare. Made of paper, this chart is a valuable tool for sailors looking to navigate the North Atlantic with precision and efficiency. Its original vintage nature adds a sense of history and authenticity to the product, making it a unique and sought-after piece for maritime enthusiasts and enthusiasts of antique navigational tools. Please note the shadows on the map are from my camera, this map is in very good condition.