Surprised to see the M9 bayonet which seems to have hitched a ride. I collect these and have some pretty had to find ones, too...
Question is the reserialing period, as the blade and pommel of bayonet is well preserved, the scabbard was heavily cleaned from rust, evidently it was reserialed to bayonet,normally the code was not restamped, as only serial number was important, so hard to say, but for me not period done.