Stockman knives are said to have originated from the Cattleman's knife, since they are similar in character, but less bulky. Stockman knives have two backsprings, which support at least three blades. Most Stockman knives have a Clip master blade. The other two blades could be any of the following: Sheepfoot, Spey, Pen, or Punch. The Large Stockman ('75) is considered one of the largest among the Stockman patterns, and is often called a large, big, or jumbo Stockman. Case began manufacturing this pattern before 1915.