Frensel lens Closeup at Bass Harbor Head Light Station
Summary
The 1901 Frensel lens was covered with a red plastic surround for many years. In 2020, the United States Coast Guard removed the red plastic covering and put in a red LED light within the lens, so the beautiful glass lens is now visible.
Tags
Date
1900 - 1910
Location
Source
National Parks Gallery
Copyright info
Public Domain Dedication