Model No. 5 was developed by Victorinox between 1910 and 1920. It was not one of the first models in the farmer's knife series. Model No. 5 had a small and a large cutting blade.
Same as model No.1, model No.5 was also offered in a total of 5 sizes, 106mm, 100mm, 95mm, 90mm and 88mm. Variant no. 5/5 was sometimes counted among the student knives in the catalogues. This variant was only available with red or black Cellidor scales.
The other 4 sizes were available in all variants until the end of production of the farmer's knife. The changes were small. The shape of the small cutting blade - unlike the officer's knife - always remained unchanged.
Pocket knife No. 5 had a large and a small cutting blade. There was an optional hanger for this model. Model No.5 was a 1-layer pocket knife.
Big cutting blade: 2.3 mm – 2.8 mm; small cutting blade: 1.4 mm – 2.2 mm
In model no. 5, the head rivet fixed the large cutting blade, the foot rivet the small cutting blade. To compensate for the difference in the material thickness of the two blades, an intermediate layer was used for the base rivet. A center rivet attached the back spring.
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. For variant no. 5/5, only Cellidor in red or black was used as the scale material.
The rivets and liners were made of steel or brass, the jaws of steel or nickel silver, depending on the version. With the high-quality, 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.