Check the listing for details. Vintage US Navy Marine Systems Azimuth Circle Patt1951. Listed at 199.00 USD. Has original case, this auction includes a second one. These are brass and painted. Great display piece for any collector. Get two for the price of one! This vintage US Navy Marine Systems Azimuth Circle Patt1951 is a must-have for any maritime enthusiast. Made by Sperry Marine, this compass is a true antique and a valuable addition to any collection. Its unique design and historical significance make it a rare find for collectors of maritime memorabilia. With its brass construction and intricate details, this compass is not only a beautiful piece of art but also a testament to the rich history of the US Navy. Its maker, Sperry Marine, is known for producing high-quality marine equipment, making this compass a reliable tool for navigators. This compass is a great conversation starter and a perfect addition to any display case.