Hackman butterfly knife
The Hackman butterfly knife (Finnish: Linkkupuukko, "latch-knife") was a type of balisong (butterfly knife) produced by the Finnish company Hackman. The knife was marketed by Hackman as a retkiveitsi ("camping knife") and later as Eräpuukko ("wilderness puukko").
The knives were also sold in the United States, and some researchers state they were issued by the U.S. Central Intelligence Agency during the Vietnam War.[1]
This knife was designed in 1959/60, and has been produced ever since. In 1981, Hackman sold the original machines and moulds to their former employee in the Sorsakoski region. During the next 20 years, the company Pertemet Ltd updated some of the materials to better and more modern styles. The blade is nowadays stainless steel. Handle material was matched better to arctic temperatures. Otherwise, the taittopuukko or linkkupuukko is exactly the same.
Since 2013, they are manufactured handcrafted by Saga Spirit Ltd in Joensuu, North Carelia region, with the original machinery. The eldest of them is from the year 1955. Mr. Mustonen, later Pertemet Ltd entrepreneur, was carrying it inside to the Hackman factory when he was working there. After Hackman, the taittopuukko was no longer possible to be called after the company, and since 1981 the puukko has been known by its historical Sorsakoski location as "the Sorsakoskelainen".
References
- ↑ Silvey, Michael W. Pocket Knives of the United States Military. 2002. ISBN 0965554422. Search this book on
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