This is an original Cassens & Plath magnetic compass with a wooden box. Used during WWII by my father who served in the navy and retired with it on to his fishing boats. He never went on the water without it. There are definite signs of wear on the compass as well as the wooden box, which is missing a board, but still in working order. Needs compass fluid. Sold as is so please refer to the many pictures I have posted for more detail. This is a wonderful and unique item and would make a great addition to any collection. Thanks for checking it out!