8in Working 2Telescope Brass Micrometer Sextant w Box
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Large Working Black Powder Coated Brass Micrometer Nautical Captain's 8 in. Sextant with 2 Telescopes , and hardwood box. Everyone Likes This Sextant! This item is a NEW very large powder coated brass (black) intricate nautical 8 in sextant reproduction with sturdy box and second telescope. This is one of the favorites. The sextant itself is quite detailed, Micrometer adjustment with six glass filter lenses (two each of blue, yellow, and green), , and large swing arm, twin reflective mirrors, comes with 2 telescopes and hardwood box. Notice 2 Telescopes, BOTH telescopes ( normal and inverted ) are included and the box has a place for the second telescope to store. The arm features a magnifying lens and a highly accurate micrometer adjuster. The micrometer is an incredibly intricate device that allows you to advance the swing arm by a single degree with each full turn of the micrometer wheel. The micrometer wheel is marked with 60 markings, representing the 60 arc-minutes in an arc-degree. Turn this micrometer wheel while sighting the main arc-degree through the magnifying lens and you can make incredibly small adjustments. The full 120 degree arc is inset with white metal to contrast with the brass, and features individual degree demarcations. Imagine sailing ship captains in the early 1900s using an instrument like this. If you
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