Colt Diamondback Revolver - Revolver, centerfire. 1986.0220.20.
The <a href="https://en.wikipedia.org/wiki/Smithsonian_Institution" class="extiw" title="w:Smithsonian Institution">Smithsonian Institution</a>
<a rel="nofollow" class="external free" href="https://americanhistory.si.edu/collections/search/object/nmah_1168909">https://americanhistory.si.edu/collections/search/object/nmah_1168909</a>