Came from a local estate. This is what I would call a souvenir knife with the owners ID and all the places that he was while in the Navy.
It is plated with a little loss shown in the last photo. Total length of the knife is approx. 20 3/8" long with the blade being approx. 13 7/8" long. A few nicks on the edge. Some solder on the handle nut. Blade is tight to the handle. Handle seems to be made of horn and shows a chip as seen in the photos. Sheath has a cut in it that measures approx. 5" long. Great piece of USN Vietnam history.