St. Etienne Model 1866/1868 Chassepot French Saber Bayonet - Bayonet, saber. AF*207694.1.
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_412301">https://americanhistory.si.edu/collections/search/object/nmah_412301</a>