The carving on the wood looks fresh and without any wear or aging, I doubt this is very old. It may be a replacement grip & sheath to the old blade.
Blade looks pretty old & worn (could also be fake aging), but seems real. The quality of the ferrule (pamor?) makes it more likely to be a older blade.
Go ahead and wipe the metal down with an oily rag (any oil designed for steel would work), but don't use any thing that is described to be a polish.
Originally Posted by Bastid
-Convincing knuckleheads that the real key tool lies between the ears in creativity, application of common sense, adaptation and thinking out of the box might just be a losing battle.