US Naval Stadimeter Sextant Type Mark 5 Mod 1 Manufactured Marine Instrument Co.

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Seller: navydavep904 (380) 100%, Location: Fleming Island, Florida, Ships to: US & many other countries, Item: 274220156802 US Naval Stadimeter Sextant Type Mark 5 Mod 1 Manufactured by Marine Instrument Co. This maritime instrument looks almost like a sextant, was used to measure the distance in yards a ship was away from the operator of the Stadimeter. Used mostly to maintain a safe or constant distance between ships traveling in a convoy. Other uses included measuring the distance of enemy ships to determine if they were in range of guns or torpedoes. The unit was used just like a Sextant, however the operator needed to know the height, or mast height of the ship they were measuring, setting its height on the graduated arc, holding the unit just like a sextant, and viewing the top of the ship's mast through the "HORIZON MIRROR/GLASS, then turning the "DRUM SCALE", which moves the rear "INDEX MIRROR", until the ship's mast and horizon lined up together in the "HORIZON MIRROR".The operator would then read the ship's away distance in yards. The above unit can measure a ship between 50 and 200 feet high, at a distance of 200 to 10,000 yards away. The instrument is fully functional, and in good original condition, made of solid blackened brass, as well as other polished brass areas with a patina. Retains the original tags on both the box and Stadimeter. The box label states: NAVSHIPSYSCOM STADIMETER SEXTANT MARK 5 MOD 1 S/N 0117 NSN 7H 6605-01-168-8508 N00104-88-C-4927 MARINE INSTRUMENT CO. TUCSON, ARIZONA(The stadimeter label is numbered 0117). The unit is 9" wide x 9" tall x 4" high laying on its three brass legs with two brass locking hooks, and carrying handle. The inside of the box has the units operating and adjustment instructions. The box is made of wood and measures 11 1/2" long x 11 1/2" wide x 5 1/2" high. Weight 9.5 pounds. Condition: Fully operational unit in good condition. Slight discoloration on mirror., Style: Stadimeter Sextant, Color: As Shown In Pictures, Military Branch: US Navy, Maker: Marine Instrument Co., Original/Reproduction: Vintage Original, Type: Sextant, Country/Region of Origin: USA, Time Period, War: Vintage

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