2021 update: Some research on this knife revealed it was actually made sometime between the 1915 introduction and expiry of the patent in the mid-1920s. In light of the excellent condition of it and its original sheath, my estimation of the value of this knife just quadrupled.Favorite hunting knife is probably my vintage Marble's Woodcraft. My father picked it up at an estate sale in the early '70's, and from what I could research, it was probably made in the 1950's. He used it for thirty years, then gave it to me. I never knew why it was his favorite knife until I handled it - good steel, great blade design, perfect size.