April 17, 2024
Old Nautical Vintage Pelorus , Not Perkins Marine Perko
Pricing & History
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Antique Pelorus made by Kelvin & Wilfrid O. White Co. Located in Boston and New York 1919-1950? This Pelorus measures 10.5 inches square by 7.25 inches tall. Weight approx 12-15 pounds Made from Brass, and other metals. Box is Mahogany, I think. T he inside dial looks like brass. This very old navigational aid is in fair/good condition for age and can be cleaned up nicely for display. (I have seen others priced in the hundreds on the internet, actual condition of those unknown) See Pictures. I do not know anything about this old item and found this info on line, "In appearance and use, a pelorus resembles a compass o r compass repeater , with sighting vains or a sighting telescope attached, but it has no directive properties. That is, it remains at any relative direction to which it is set. It is generally used by setting 000° at the lubber's line . Relative bearings are then observed. They can be converted to bearings true, magnetic, grid, etc., by adding the appropriate heading. The direct use of relative bearings is sometimes of value. A pelorus is useful, for instance, in determining the moment at which an aid to navigation is broad on the beam. It is also useful in measuring pairs of relative bearings which can be used to determine distance off and distance abeam of a navigational aid." "Wilfrid O. White (1878-19
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