Victorinox developed the No. 52 model in the 1920s. Originally the length was 76 mm. Compared to the models no. 50 and no. 50/1, the model no. 52 was one of the higher quality pocket knives. Accordingly, rust-resistant steel and expensive scale material were used.
Up until around 1950, horn, tortoiseshell, engine-turned steel and mother-of-pearl were used as scale materials, as well as celluloid/ cellidor in imitation mother-of-pearl. From around the mid-1950s, model no. 52 was still available with engine-turned steel scales and in horn I class and mother-of-pearl. The last two variants were also available with or without a toothpick and tweezers. Model No. 52 was produced until around the mid-1970s, when Victorinox discontinued production of the entire series in 75mm.
In addition to a large and a small cutting blade, model no. 52 has a long nail file on the back. With the scale material horn and mother-of-pearl, the option toothpick and tweezers could be selected.
Big blade: 2.3 mm; small blade: 1.25 mm; nail file: 2.3 mm; Rivet: 1.6mm; Liners: 0.7mm
This model has a spring on which all three functional parts rotate. To ensure this function, the spring is branched on one side. This allows the small blade - like the nail file opposite - to rotate at this point and always be under tension. A center rivet holds the spring in place, while the other three rivets place the three functional parts.
Guilloched steel, horn, mother-of-pearl, tortoiseshell and at times celluloid/ cellidor in imitation mother-of-pearl were used as the scale material.
The liners are made of nickel silver, as are the intermediate layer and the rivets. Liners were not used on bowls made of guilloched steel.
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