The first-order Fresnel lens was first lit on December 1, 1870 and is still used today with tours available when the winds are less than 40mph.
<a href="//commons.wikimedia.org/w/index.php?title=User:Harvey_Abernathey&amp;action=edit&amp;redlink=1" class="new" title="User:Harvey Abernathey (page does not exist)">Harvey Abernathey</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>