Lisa Beavers

A single-bladed (sometimes double bladed) jack knife with a false edge along the spine of the blade used...

Essentially a Swell-Center Canoe Pattern, though the shaping is usually more subtle....

A jack with a pronounced downward curve and often a pronounced, rounded end. The blade folds into the...

If you take a jack knife and widen the center of the handle, so that it swells out...

A Regular or Sleeveboard jack which has a pronounced swell or “pear” shape opposite the blade end. Sometimes...