Thanks for the comments, guys.
The joke about this dagger as a "shank" came first from a friend who saw a pic of the blade alone on his cell phone; he could only see the tang without scrolling, and asked if I'd started making shanks. The thing is, though, the way the little knife fits in your hand leaves no doubt about it's intended function. It's a deadly weapon, period.
Stuart, the short length and tight curves on this one led to an interesting grind job. That's a rolling bevel down the blade, just like a wineglass sailboat frame. I kinda ground this one into the vicinity, and took it the rest of the way with files and stones after hardening. What fun!
Bob, let's do it!
John