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Crowdy Head Light : ウィキペディア英語版
Crowdy Head Light

Crowdy Head Light is an active lighthouse located at Crowdy Head, a headland between Forster and Port Macquarie, New South Wales, Australia. It is registered with the Register of the National Estate.
==History==
The first station in the area was a pilot station established in 1860 at nearby Harrington, assisting ships navigating the entrance of the Manning River.
The current lighthouse is the last of five lighthouses of similar design designed and built by James Barnet in 1878-80, the other four being Fingal Head Light, Clarence River Light (now demolished), Tacking Point Lighthouse and Richmond River Light. The original light was a fixed white light from a 4th order catadioptric apparatus with an intensity of less than 1,000 cd. It was manned by one keeper.
In 1928 the apparatus was converted to a carbide lamp (acetylene gas), with an intensity of 1,500 cd. At the same opportunity the light was automated.
The pilot station was closed in the 1960s. In 1972 the light was converted to mains electricity.
In 2002 the 4th order Fresnel lens was sold on eBay in 2002 for $20,000, and is now on display at Sea Girt Light in New Jersey.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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