Weems Stormglass Mysterious Weather Predictor

This mysterious weather predictor has been used since 1750. Admiral Fitzroy, the famous sailor and meteorologist, used the Stormglass aboard the HMS Beagle during his historic voyage with Darwin. After 250 years, how the Stormglass works is still a mystery, but it is believed that it has to do with the electromagnetic changes caused by weather and sun storms. The appearance of the crystals inside the glass indicates changes in the weather. The Weems Stormglass is packaged in a handsome velvet-lined black gift box with brass mounting accessories; which include the base, self tapping screw, finial and mounting accessory (to enable either wall or counter/table top fixed mounting). Sealed glass chamber holds the crystals and is encapsulated in a beautifully crafted brass cylinder. Displayed freestanding or mounted to a boat bulkhead or wall using an optional mounting bracket. Brass finish.