The Victorinox One-Hand Parachutist Swiss Army knife is a large, 111mm / 4 1/4" Swiss Army knife. The large one-hand opening blade locks open, and is released by pushing a liner lock that sits parallel to the blade. The name implies use by parachute jumpers, but the belt cutter and blades are also useful for many other things. This model was retired circa 2008.
There are no similar Wenger or Leatherman knives.