Models no. 306 to no. 308 first appear in the 1922 Victorinox catalogue. All these 3 models were produced in small quantities. Models No.307 and No.308 no longer appear in the 1937 catalogue. Only model no. 306 lasted until about 1965 and then disappeared from production.
Models No.306, No.307, and No.308 all had a large cutting blade, awl, and screwdriver, with the model No.308 having a narrower design. The Model No. 306 also had a small cutting blade, the Model No. 307 an additional narrow screwdriver, and the Model No. 308 an additional narrow cutting blade in the spear -point shape.
Big cutting blade: 2.4 – 2.6 mm; Awl: 1.5 – 1.7 mm; Screwdriver: 2.0 – 2.4mm; small screwdriver or small cutting blade: 2.0 – 2.2 mm
The models no. 306 - 308 are 2-layer pocket knives. The top layer contains the screwdriver and the small cutting blade/narrow screwdriver, the bottom layer contains the large cutting blade and the awl. The head rivet made of nickel silver, together with the 2 jaws, fixes the screwdriver and the large cutting blade; the foot rivet the small cutting blade/narrow screwdriver as well as the awl and a spacer. The center rivet is used to fix the two scale parts and the back springs.
Fiber red in particular was used as the scale material. At times the models are also available with scales in horn and staghorn.
When carbon steel was used, the sinkers and rivets were steel; in the case of tools made of stainless steel, the liners and rivets are made of brass, with the head rivet and the jaws always being made of nickel silver and the intermediate layer made of brass. At the very beginning there were also models with steel jaws/liners.
Trade names: cadet knife, mechanic's knife