At the top of the sheath for 4 or 5 holes I have grooved the leather deeper as this is where the stitching will end and it needs a bit more room there.
Moving on to the color. The sharpie works well to make a clean transition between the black border and the brown tooled area. I have trouble keeping the dye from getting away so this step buys me a bit of leeway.
Coating the tooled area with antique finish. I slopped a bit over the line in a couple spots, but it will not matter as that's gonna be black later.
Wiped the excess antique off the tooling, and dyed the edge(and the back and belt loop) black.
Beginning the stitching. I am using artificial sinew. The rule of thumb is 7 times the length of your stitching for this style stitch. I decided that I'd do this in two pieces since 7 times 28 inches is a bit long to handle. Fold the sinew in half and the first half goes through like this.
And the other end follows it but down for up and up for down.