Three Lenses at Manitowoc, Wisconsin

Thanks to George McCourt for contributing this photo of the Fresnel lens collection of the Wisconsin Maritime Museum in Manitowoc. From left to right, we see:

  1. the fourth-order lens of the Manistique East Breakwater Light, Michigan;
  2. the fourth-order lens of the Manitowoc Breakwater Light; and
  3. another fourth-order lens from the Milwaukee Breakwater Light. This lens had also been used earlier (1906-1926) on the Milwaukee Pierhead Light.

Image copyright 2004 George McCourt; all rights reserved. Used by permission.

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Posted March 23, 2004. Checked and revised October 13, 2017. Site copyright 2017 Russ Rowlett and the University of North Carolina at Chapel Hill.