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February 1972 72-1482
The middle section contains views of the east and west ends of the Guildhall
Ernie Yard and Paul Benoe
Such ships were armed with giant guns
Astronomical quadrant Finish:20-pack February 1972 72-1482A 12 inch astronomical quadrant made by John Bird. Astronomical quadrants were used to measure the angle of a celestial object from the zenith. Operated in conjunction with a transit instrument, they could be used to check the running rate of astronomical clocks known as regulators. At sea a quadrant can be used to help fix a ship's position and to determine latitude. ca. 1767
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