Victorinox produced model no. 12 between the 1920s and the 1970s. It was a 3-part pocket knife with a cutting blade, pocket awl and flute. Like all farmer's knives with such a flute blade for bloodletting, model no. 12 was only produced in 2 sizes: 106 mm and 100 mm. The flute blade was always made of rust-resistant steel from around the mid-1920s.
In contrast to model no. 11, which also had 3 tools, model no. 12 was a 2-layer and not a 3-layer pocket knife. This was due to the fact that the large cutting blade and the pocket awl shared a position in the model No. 12. This was also the case with some other peasant knives. This saved material and weight. However, it required a special construction. The upper scale and the outer plate as well as the cheek were cut so that the awl came to rest on it when closed and fit past the large cutting blade. At the same time, an intermediate layer was introduced in the foot rivet on the pocket awl, which led to a widening of the back spring on the pocket knife foot.
Pocket knife No. 12 had a large cutting blade, a pocket awl and a flute blade. There was an optional hanger for this model. Model No. 12 was a 2-layer pocket knife.
Big cutting blade: 2.5 mm – 2.8 mm; Awl: 2.0 mm; Flute: 1.8 mm
In model no. 12, the large cutting blade and flute blade were attached to the head rivet, the pocket awl to the foot rivet. A center rivet attached the back feathers.
Victorinox originally used black fiber scales as the material for this pocket knife, later also class I and II horn and red fiber instead of black fiber.
The rivets and liners were made of steel or brass, the jaws of steel or nickel silver, depending on the version. In the case of the high-quality, so-called "fine version", rivets and liners made of brass and jaws made of nickel silver were used, and rust-resistant steel was used for the tools, if this was already available.