Don't take me wrong fellas- it's a beautiful blade.
What I meant is the blade of the model has no noticeable secondary bevel as is visible in the picture of the prototype- the proto Rose seems to have more of a saber grind.
- The Sabre Grind
The sabre grind is a strong edge format. The bevel starts around the
middle of the blade, and proceeds flatly towards the edge. This
leaves a strong edge for chopping and other hard use. But it also
means the edge will be fairly thick, so this design will not
necessarily slice all that well.
The sabre grind is found on many military classic designs such as the
Randall #1 and the kabar.
- The Convex Grind
Also called the Moran grind, after Bill Moran. This grind is as you
would expect, the grind arcs down in a convex curve down to the edge.
This means the point can be very sharp, because there's no secondary
bevels to create the edge itself, just two intersecting arcs. There
is also a fair amount of steel behind the edge, because the convex
arcs cause the edge to widen non-linearly. This is a strong-edge
format, which won't penetrate like a flat grind but will be stronger.
Knifemakers form this grind on a flat-belt grinder. A disadvantage of
this grind is if you don't have a flat-belt grinder yourself, it is
difficult to touch up the edge.
from The Blade Geometry FAQ by Joe Talmadge
I may be confused; its been known to happen.
Patrick Mc