Rare Blade

[porterkids]

Sounds like an unfullered first contract bayonet. The first contract blades had what I call the bright (vs. black oxide) finish. All bayonets (military contract, that is) from the second contract on had the black oxide finish.

You didn't say; is the screwdriver on the end or the side of the cutter plate? Is the scabbard the older Phrobis style or is it the later style with only two loops and a hand grip?