<div class="description">
<ul><li><b>Scope and content:</b>  Original Caption: U.S. Lighthouse Service replacing buoys. Officers of Lighthouse tender, left to right: W.G. Remsen, 1st Officer; J. McDonnough, 2nd Officer; M.J. Lord, Asst. Engr.; R.A. Berg, Quartermaster J.H. Moore, Engr. The man in center holding a sun valve which is so arranged that then a cloud passed over the sun the light beams forth. The engineer at right holding the cap which goes over sun valve.</li></ul>
Photographer: Committee on Public Information</div>
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Unknown author<span style="display: none;">Unknown author</span> or not provided</div>
<a href="https://en.wikipedia.org/wiki/U.S._National_Archives_and_Records_Administration" class="extiw" title="en:U.S. National Archives and Records Administration">U.S. National Archives and Records Administration</a>