Navy submarines have multiple depth gauges of varying depths that can be switched on or off depending on what depth the submarine is operating at. The gauge was disassembled and the inside of the housing was then cleaned, then the gauge was reassembled, tested with water and compressed air, and confirmed to be in working condition. The parts of the phosphor bronze mechanism that are inside of the housing are all clean. Because of the age of the gauge, it should be assumed that it is no longer accurate and would need to be sent to a qualified shop to be recalibrated in order for it to be accurate again. The gauge has a bakelite housing, a glass lens and a steel dial. The item “Submarine Depth Gauge Meter Instrument US Navy Post WW2 Sub Ship Nautical Marine” is in sale since Saturday, November 27, 2021. This item is in the category “Collectibles\Transportation\Boats & Ships\Military\Other Naval Collectibles”. The seller is “mrtracy139″ and is located in Philadelphia, Pennsylvania. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia.