Broughton No. 79 musket caliber .42, weighing 2 lbs 8 oz.
N. Peters, photo-litographer, Washington, D.C.
<a rel="nofollow" class="external text" href="https://books.google.com/books?id=NzA-AQAAMAAJ&amp;pg=PA364">Report of the Chief of Ordnance</a>