<p>Up close view of metal pipe with cap. A label to the right reads "1/2 full"</p>
<p>This is the lower water level gauge tag for ½ full on the cistern of the "Big Boy"</p>
<ul><li>Keywords: big boy 4012; uprr; restoration; steamtown NHS; steamtown; uprr big boy 4012; train; locomotive; 4012</li></ul>
NPS Photo
<a rel="nofollow" class="external text" href="https://npgallery.nps.gov/">NPGallery</a>