SOE OSS WWII Style Thumb Daggers-Updated

So I said these werent done yet, heres what I was referring to.
I needed to mill out the grooves in the flats to make them more grippy.

Here are some more pics. Here they are in the sheaths, Here is one being milled out, and here is a shot of them after the grooves were milled out. Let me know what you think. 

AND if youre curious HOW they were used....the pic is a bit blurry but Im sure you get the idea.
These were used by OSS and SOE agents during WWII as a last ditch weapon to escape custody or if it was called for, eliminate an enemy. I can tell you more but this should give you enough to do some research of your own. These are Thumb Daggers, but Lapel Daggers were also used as were Hatpin daggers, sleeve daggers, FS daggers, and many many more unique and special weapons that were developed JUST for the spies and clandestine service agents of WWII.
If youre a fan of WWII weaponry and edged tools, sound off.