Rev War Brown Bess tri sided bayonet from a Brown Bess. One of the 2nd cousins has the Brown Bess.
Union Cavalry saber and Union short sword from an artillery unit, with powder measurements stamped into the blade. And the matching Remington 1858 originally issued to a direct ancestor in the 39th Illinois Volunteers. His initials scratched in the wooden grip. Have the complete kit including bullet molds.
Grandfather's dress cavalry saber from WW I, which he survived despite being mounted cavalry. Have his spurs and Sam Brown belt/harness too.
WW II Arisaka bayonet.
And a lot of stone points and bladed tools.