Thanks for the pictures, those help.
Hmmm - trying to install it, and the awl blade appears to be too large to fit through the ferrule .
I'm sure I ordered it wrong (from Weaver), but it is a Saddler's Harness Awl 2-3/4", 2.0 mm.
The awl haft is Weaver part number CSO145. Looks like I will be ordering another blade.