Highly reliable and accurate, the Anniversary Barometer will make an unforgettable gift. It houses double diaphragm German aneroid movement that is visible through the open dial and displays both inches and millibars. This temperature compensated design has been calibrated for altitudes up to 3,500 feet above sea level. Part of the Anniversary Collection, this piece commemorates the 75th anniversary of Weems & Plath, a company dedicated to improving sea, air, and space navigation methods and safety. This barometer is crafted from solid, forged brass that has been hand-polished and lacquered for long-lasting shine. It features the finest components available in the world; the distinctive dial has been intricately etched to create a rich and subtle pattern. Your barometer is labeled with a unique serial number and comes complete with mounting hardware and complete instructions. About Weems & Plath Founded in 1928, Weems & Plath is a company steeped in the rich tradition of navigation. They offer a wide spectrum of precision instruments ranging from brass nautical clocks and barometers to binoculars and children"s books. The company"s dedication to providing the highest quality possible is evident in every step of the building process. From development to production, Weems & Plath strives to be meticulous and offer exceptional service. The rich history and high standards of Weems & Plath will carry on into the future. * Dimensions: 7H x 7W x 3.5D inches * Polished and lacquered solid, forged brass frame * Commemorates Weems & Plath"s 75th anniversary * Calibrated for altitudes up to 3,500 feet