Though not listed in the catalog nor "Non-Catalog II" flier, the following knives can be ordered, either directly through RMK or through an authorized RMK dealer:
Both are single-piece knives, and are available only in stainless steel. Their handles are matte, done by sand-blasting, and cannot be ordered without this treatment.
Click on the thumbnails below to see photos of the Triathlete and Tailors Knife (photos courtesy of Jesse Egnew):