The Victorinox Grafter Swiss Army knife is a recently retired, 100mm / 4 " Swiss Army knife with a single tough blade designed for gardening or crafts work. Unlike standard Swiss Army blades, the Grafter blade is sharpened on one side only. That makes it possible to run the flat side of the blade along a ruler or guide, and cut extremely accurately. It also lets you cut plants and not crush the stem on the flat side.
There are no similar Wenger or Leatherman knives.