Small <a href="https://en.wikipedia.org/wiki/Meker-Fisher_burner" class="extiw" title="w:Meker-Fisher burner">Meker-Fisher burner</a>, made of cast iron and brass letter b is on the base.
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/woodhead/">jasonwoodhead23</a>
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