The Tapio Wirkkala puukko knife by Hackman, Finland is a rare vintage piece with a stainless steel straightback blade and a hidden tang construction. The ambidextrous knife features a black color with a plain blade edge and comes with a leather sheath for safe storage. The original 1960s model showcases a wooden handle, showcasing the craftsmanship of Finnish knife-making tradition. This collectible piece is a must-have for knife enthusiasts and collectors looking for a unique and authentic Finnish design.