Switzerland. Canton Jura. Delémont. Wenger factory. Production of Swiss army knifes. Workers at work. in 1992, the man was still allowed to smoke a cigarette inside while working. Wenger is one of two companies that have manufactured Swiss Army knives. Based in Delémont, Wenger was acquired by rival Victorinox in 2005. Since 2013, Wenger Swiss Army knives are integrated in the Victorinox collection (as the "Delémont collection"). © 1992 Didier Ruef