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Based on an 18th century design, this 30 minute hourglass is based on a ship’s hourglass which was calibrated to the half hours of the ship’s watch, and if the helmsman didn’t turn the glass too early it actually doubled in defining longitude. Navigators tried to keep count of the hours; the galleons wrecked on the Western Australian reefs remind us of the perils of incorrectly kept time.

This handsome bronze hourglass sits comfortably on a polished wooden base.

Measures 3¼ x 5¼ inches.

Item Number: HG007