Is there a sheath? From the looks, I'd say anywhere from 1960-1980. More than likely in the mid-1970's. Even in that condition, it's a nice one. If you don't have the sheath, the Ruana shop will make you one if you call them and send them the knife for measurements. Value is around $650 as is without the original sheath. Is that a crack I see on one side of the elk stag handle? Keep us informed.

Pap