I bought one knife in the most recent Amoskeag auction. It was described as a prototype Model 24 Guardian. Here are a couple of photos of the knife. I was quite pleased to get this knife because I believe it is the same one shown on page 36 of Rhett Shidham's "green" catalog. The knife is in the lower right hand corner of the page (scan attached). There are a couple of marks on the sheath that show up faintly in the photo in the catalog. And best of all, it's great condition. The sheath is beginning to show its age a little, but the knife is close to perfect.
- - Buckspen