There are two Swiss Army knife manufacturers, Victorinox and Wenger; they supply about 50,000 knives total to the Swiss army each year. The rest of production is devoted to exports, mostly to the United States.
In 1891, Victorinox founder Karl Elsener started supplying the Swiss army with knives actually made in Switzerland, as opposed to Germany. The original had a wooden handle (as opposed to the plastic/metal composites seen today), and featured a blade, a screwdriver, a can opener, and a punch. Later, in 1897, Elsener developed a version that used a special spring mechanism that allowed more tools to fit in the same size handle. 
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