Swiss Army knife and features a Victorinox or Wenger "cross" logo or, for Swiss military issue knives, the coat of arms of Switzerland. Originating in Ibach, Switzerland, the Swiss Army knife was first produced in 1891 after the company, Karl Elsener, which later became Victorinox, won the contract to produce the Swiss Army's "Modell 1890" knife from the previous German manufacturer. In 1893, the Swiss cutlery company Paul Boéchat & Cie, which later became Wenger, received its first contract from the Swiss military to produce model 1890 knives; the two companies split the contract for provision of the knives from 1908 until Victorinox
Swiss Army knife knives lighter. Previously these separating layers were made of nickel-silver. The martensitic stainless steel alloy used for the cutting blades is optimized for high toughness and corrosion resistance and has a composition of 15% chromium, 0.60% silicon, 0.52% carbon, 0.50% molybdenum, and 0.45% manganese and is designated X55CrMo14 or DIN 1.4110 according to Victorinox. After a hardening process at 1040 °C and annealing at 160 °C the blades achieve an average hardness of 56 HRC. This steel hardness is suitable for practical use and easy resharpening, but less than achieved in stainless steel alloys used for blades optimized for high