Bronze 30 Minute Hourglass

Bronze 30 Minute Hourglass

Bronze 30 Minute Hourglass has an18th C. industrial design, bronze, and wood. Hourglasses are collectible because of their combined historical and practical value.

Ship’s hourglasses were 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. 

Regular price $89.99
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