Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.

Photographer: Cosmos Mariner
Taken: July 17, 2014
Caption: 1907 Fourth Order Fresnel Lens
Additional Description: This is the Fourth Order lens that was put into service in the Lighthouse in 1907 when an electric light (200 watt bulb) was used for the first time. A generator in the basement was used only for the bulb. Weights in a tube in the center of the tower staircase were still needed to rotate the clock mechanism. The house did not get electricity until 1936. The earlier lens burned whale oil, later lard oil and finally mineral oil (kerosene). This lens was removed from the tower in 1953 and replaced with the Fifth Order lens now in use.
Submitted: March 6, 2017, by Cosmos Mariner of Cape Canaveral, Florida.
Database Locator Identification Number: p376533
File Size: 3.901 Megabytes

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