A Swiss Army Knife is much more than just a pocket knife. Victorinox, Wenger, and Leatherman are the companies that produce swiss army knives. The size of Swiss army knife is measured in length and width of the tool. Let's see some of the best wenger swiss army knives. 35 pages on the history of cutlery; 157 pages on Victorinox knives, brief history of the company, almost no mention of Wenger; no history of models or development of tools; nice photographs.