I don't know how old it is... It look alike 1950's or 1960's. But not sure. I went to New Hope, Pa and Lambertville, NJ. There in New Hope of the town have very popular varies Antique stores. I enter and out and enter out on antique store each... Until I find that one store have many old knives. There has vinatge Purina Kutmaster knife very knowledge... I did ask the seller how much this cost? He think not sure which the price. He assume the 35 buck. I ask him what you say again? He mention 35 buck. I quickly say take it!. That vintage Purina kutmaster knife cost me 35 buck for that.